I don't get this. Dating apps are incredibly popular, and it would be opt-in. If it's the age bucket you're concerned with, I met some of my best friends online during that time (female and male). Adolescence is just like that. I understand that harassment, intimidation and general annoying behavior are a concern. But, if we reached the phase where "two random people can't have a normal conversation if they both wish to" is the default stance then we all need to take a good hard look at ourselves, technology is not going to solve that one.