Yea, I warned them when the purchase went down, there was a migration to telegram and discord but they still use it as far as I know.
I'm just glad it's the lesser of the available evils. I definitely have friends with kids in the same age range (and family members of the same age) who use insta-makeup IRL and have phones out taking pics all the time.
Still email is something considered necessary to sign up for stuff, not something they closely associate with their identity, or something they'd be scared to lose.
I was hearing on the radio the other day the average person will use something like 140+ email addresses in their lifetime. Found the article they were discussing here[1]
Between jobs, schools, throwaways and over many years this seems feasible.