There are applications expressly for dating (tinder, bumble, pof, etc...), some also mentioned in the article. It's not an unreasonable expectation for such an app to be connected to an actual, verifiable person.
Aside: It also wouldn't be unreasonable to simply allow minors on a given platform, and give a visible indicator of minor (or under 21 for that matter) status. Other walls may also be appropriate.
As for leaks, abuse or other reactions to peoples behavior, there are already laws and courts for that. It's impractical to solve for every problem. All solutions have gaps, that's no reason not to try. It's up to individuals to reasonably protect their own identity when communicating semi-anonymously. And frankly, I'm not a fan of a lot of the association of real names to online accounts in a number of social platforms in general. My main counterpoint was that cost is NOT a real counter-argument to having a more thorough onboarding as it could be part of signing up for such platforms.
