my mom's childhood had something in common with mine

So last night, my mom and I were talking about when she was a kid, and it occurred to me we had something in common. See, she's left-handed, and in those days, they tried to "fix" left-handed people by belittling them and physically punishing them. My mom was assumed to stubborn, stupid, mentally ill, or even just evil just because she was different from the norm. Gee, that sounds a LOT like what trans people go through ...