If countries' leaders weren't dumb as shit they would offer public dating apps that don't try to exploit people.
These apps work great when the goal is to match people who would get along, capitalism enshittified them.
It's obviously how most people want to meet, why not offer people a dating site that isn't shit to fix isolation?
I honestly think countries don't want to fix their birthrates at all, none of them do anything significant to help them.