They should force all players to put in proof of that their currently enrolled in a vocational program or employment. These games trick NEETs into having a purpose while they're making no progress IRL. It's a trap that many fall into and the prospect of making a career out of gaming only exacerbates this problem.
Even if they're too old or not gud enough, the possibility is there and that's enough to trick a NEET into sinking all their free time and energy into a pointless endeavor.
If prohibiting NEETs from multiplayer games is too harsh then remove the ability to use social features in the game.
>Why would I want to wage to buy my boss another yacht?
It has to do more with setting yourself up to long term comfort or satisfaction. Not achievements bound to game servers, a computer, and an internet connection. Take these things away and these gamers have nothing left but wasted years.