My belief is this all comes down to austerity. We have poorer people, a much poorer health service (physical and mental health), less benefits, less money for teachers, less money for social workers, less money for police, less job opportunities, less pay, higher rent, higher costs etc across the board but especially worse in poorer areas. This is a society on the verge of collapse and we're seeing signs of it everywhere.
Happy families and happy kids want to engage with other people, learn things and be part of a community. What makes them happy - enough money for shelter, food and basic necessities without worry of where the money for rent is going to come from or having to use a food bank. I've been there and when you are struggling it's hard to care for the wider society / community. Thankfully I didn't have kids eating up that stress which they will easily pick up on.