Just some more detailed info that may or may not be of use to our intrepid explorers.
The worldwide age of consent is 16, drinking age for beer and wine is 16 and it's 18 for hard liquor. The driving age is 18.
Homosexuality has been an accepted part of life for well over two hundred years (yay progress) and gay marriage is no more stigmatized than heterosexual marriage.
Body modification, while no more common than in anyone's home world, is significantly more technologically advanced and thus can be very...drastic...and creative in the sub-cultures that are into it. One of those sub-cultures is, of course, the rather small, radically fringe group that's obsessed with the mythology of mutants.
A whole slew of cheap, legal, and non-addictive recreational drugs are available and moderately common, though there are still a few that are illegal, expensive, addictive and dangerous.
One of these is a drug that gives humans a limited and unpredictable range of superpowers for a short period of time. It's very expensive and very illegal, but there's a significant black market for it and it's not unheard of to see news reports of disturbances caused by 'abusers' who couldn't control whatever temporary powers it gave them or simply abused those powers.
For the museum displays involving mutants. There are not
many photos, they were salvaged from estates and what not mostly long after the epidemic had run its course. Most of them are news photos of the X-Men in uniform and 'in action' and of Genosha and its royal family. There are some few 'candids' as well, which include a very few pics of the X-Men at home at the Xavier Institute, some of them with students visible in the background. If your character's alt appears in one of the pictures the resemblance should be evident but not to the point of people thinking they're the reincarnation of some ancient mutant though they might be taken for some distant descendant of a depowered survivor if people are paying attention...unless they have the misfortune to run into a mutant obsessed freak.
If there's anything else we haven't covered that you'd like info about, feel free to hit one of us up or just ask here. There are all sorts of details that can be filled in.