This is too relatable

There's a probability that a teen will get the energy and motivation to step outside and interact, but if they don't have a decent experience interacting or if they can't reliably find another teen to interact with, then it reduces their motivation and that probability drops. Phones and availability of "good enough" entertainment alternatives to interacting combined with reduced probability of having a good experience result in reaching a critical mass where interactions and good social experiences are so unlikely that many people don't even try. The only way to fix this problem is by increasing the motivation to get out, but unfortunately it depends on everyone doing it and not just you.