I wonder this. Will there be a horrible period of extra violence due to self identification, then more CCTV (some people are much more willing to sext so will more surveillance be considered that bad?), then stricter laws/sentences for any violence.
Running alongside that children being taught that although there are biological differences between humans each one usually identifies with one gender, that starts with how their parents treat them, teaching them about going to the toilet, then about periods... Sometimes someone decides that their parts made the wrong decision about their gender and they can then identify as the other gender.
Then people of all ages get more comfortable with seeing different types of bodies in places like changing rooms and that most of the time everyone just showers, gets changed and swims.
Unfortunately I worry that the first bit is utopia.