I was in junior school (<11 years old) in the UK in the late 90s. Lunch time was an hour and a half of (obviously eating) and loosely supervised running around in a field with a ball, attempting to climb a tree, using your imagination to play games with your friends, falling out with your friends one day, learning how to make up the next, falling out of said tree and being patched up by the school nurse.
There were music clubs and science and art ones too, where you’d mix with other years. The library had computers that a few of us learned HTML on, and later the internet.
I’m not really looking back through rose tinted glasses, this was also at a quite competitive academically driven private school (if you did not then pass the 11+, bye bye) but like, you really were free to do a lot. Perhaps things really have changed then (and I really have gotten old), I like to hope not. I dunno - I really just don’t think it’s fair to do that to the young. Especially coupled with the justification that ‘if you do rough and tumble play with your mate you will kill your grandmother’ reasoning that they must have picked up on.