I don't think it's mere proximity, but any unsupervised interaction with untrusted adults is a problem for children. A child playing football could readily dis

I don't think it's mere proximity, but any unsupervised interaction with untrusted adults is a problem for children. A child playing football could readily disturb a sleeping homeless person or upset the commerce between sex workers & their clients. Neither interaction would be pleasant for a child - and both could easily become unsafe.