I'd say that's down to poor maintenance and management from the complex owners, not a fundamental issue with communal spaces themselves. I've had the same issue

I'd say that's down to poor maintenance and management from the complex owners, not a fundamental issue with communal spaces themselves. I've had the same issues you've described with a local park, until the council hired a security/maintenance man to clean and fix the park, and move on any teenagers who the park was not designed for. The place went from being in a state of disuse and disrepair, to a great spot for young kids and parents to socialise. All it takes is a few people to ruin something, but likewise it only takes a few people to stop that from happening.