I personally think that the ultimate end game for pronouns in English will be creations of new ones with no connotations (so easy to apply like names) that get incorporated into the language or more likely an eventual move to a single pronoun that applies to everyone. Chinese, for example, only differentiates in written form so would be an easy adjustment. They is every high schoolers preferred choice in essays before English teachers complain.
I'm not sure how the under 20 is adjusting but in my groups of mid 20 to late 30 nobody is trying to disrespect anyone by not using preferred pronouns, but it just slips out from decades of usage, and people just end up replacing pronouns with the person's actual name after multiple times apologizing. The having to remember multiple names when meeting someone just doesn't seem tenable long term.
