Who has the right ?

Discussion on the legal consequences of a hypothetical new scientific discovery.

I'm not sure if this is the best place to put this. I'd like to start a discussion (that possibly could become controversial) regarding a hypothetical situation. You could as well call it fiction :)

Starting assumption:

Medical science makes a breakthrough and it's now possible - but rather expensive - to 'build' a new body for someone. That body doesn't need to be of the same sex, so apart from being helpfull to counter various handicaps and diseases, it could also help with gender issues.

Questions (feel free to invent other options if you don't like those I mentioned):
Who do you feel should be allowed a new body of the other gender ?
1) everybody who can pay for it
2) everybody who can pay for it, but for transsexuals it should be free/cheap the first time
3) it should only be allowed for transsexuals
4) changing gender that way ? That should never be allowed to happen! (I doubt anyone here feels this way, but I'm sure in the big bad world out there, many will think so)

How should marriage and children affect the permission ?
1) it should not be allowed for those who are married
2) it should be allowed for those who are married unless they have children
3) it should only be allowed for those who are married if the partner agrees
4) it should not be allowed for those who have children even if they are not married

What should be the minimum age to qualify for such body ?
1) there should be no minimum age
2) as long as the person is old enough to express their desire it should be allowed
3) the person should be at least 10 years old since younger children sometimes have temporary desires to be the other gender
4) the person should be a legal adult

What should be age of the new body ?
1) it should always match the age of the original body
2) legal adults should be free to choose their new age but they should remain legal adults. Younger people should remain the same age.
3) anyone switching gender should have the option to be put at the start of puberty so they can "grow up" in their new body. They would be hold to the same rules as others of that age regarding their rights. (School, smoking, drinking, sex, ...)
4) anyone switching gender should have the option to be put at the start of puberty so they can "grow up" in their new body. They would still be considered their original age for legal purposes. (ie: they would be considered adults for crimes committed, are allowed to drive a car, ...)
5) anyone switching gender should be forced to start at the beginning of puberty so they can "grow up" in their new gender. This would not apply when switching back to a gender you previously had

What educational uses should be possible ?
1) during puberty, each child should be allowed with parental consent to spend some time (eg: one year) in the body of the other sex. This should count for some credit.
2)during puberty, each child should be forced to spend some time (eg: one year) in the body of the other sex. This would benefit the understanding between sexes later. (note: there's a story like that out there. I'm begging forgiveness from the author if she feels I'm stealing ideas here)
3) parents should be allowed to change the gender of their child according their wishes as an educational tool, regardless of the opinion of the child

What correctional uses should be possible ?
1) it should never be used as punishment
2) male sex offenders should be put in a female body for the duration of their penalty
3) male sex offenders should be put in a female body and denied permission to switch back for some time. That would BE the punishment (ie: no jail)
4) male sex offenders should be put in a female body and denied permission to switch back ever
5) all prisoners should be put in female bodies for the duration of their time in jail. It's easier to manage space that way since all prisons would be for women and it would also discourage male prisoners from trying to escape.
6) why use this expensive method for prisoners ? A bullet is so much cheaper ! (*just kidding, don't flame me*)

What other consequences of this new tech would seem acceptable to you ?
1) males who get a new female body are allowed to compete in female sports
2) schools are allowed to accept only students of one gender. This doesn't discriminate because the student could change to that gender
3) job offers are allowed to be only for one gender since the person applying for the job has the option of changing their gender if they really want it.
4) it is ok to give men and women different rights since anyone is free to make the choice
5) crossdressing should be illegal since you have to option of wearing those clothes in the body of the right gender
6) same sex marriages should be illegal since couples have to option to be male and female
7) it should be possible for single males to temporary become female in order to have a child
8) it should be possible for gay couples to have one partner temporary change sex to have a child together
9) a marriage where one partner changes sex is automatically annuled
10) changing sex without permission of your marriage partner is considered adultary
11) children of the same parents have equal rights, regardless which parent was the mother and which the father
12) sex changes on pregnant women are illegal
and so much more ...

The discussion I had in mind would be mostly regarding the gender aspects of the situation. I know there are a ton of consequences that have nothing to do with gender. If you really want to, then feel free to address those too. The subject of same sex relationships is definatelly related. You might have also noticed that I mentioned age a few times above, since that has a major effect on how you can express your sexual life. The age of consent and the age of majority are two major barriers (which happen to be the same age in my country at the moment but can differ elsewhere).

I'm also very well aware of the racial consequences, but please let's not go there. I like a controversial discussion, but I hate to think I started World War III.