The thing that goes wrong again and again and again with public and low cost housing is that they build housing, and nothing else.
Stick a bunch of people in a tower in a field with no entertainment, no work nearby, building rubble surrounding their environment, no maintenance happening, no follow through on planned facilities, and the consequences are absolutely 100% predictable. Literally last night I watched a pair of bbc documentaries about a new estate, one from when it was new in the mid 60s, one from the late 70s. The residents are there in the 60’s, going “well it’s a pain having to walk all the way up but we trust that the lifts will be installed soon, and we’re looking forwards to the leisure centre” - fast forward 15 years, still no lifts, no leisure centres, and surprise surprise the kids are setting fire to cars to have something to do. If government won’t uphold the social contract, why should citizens?
The implementation is entirely the problem, and unfortunately few seem to realise that it can be done well. You can’t just make containers for humans and expect that to solve everything.