My former neighbour has a child with mild autism. Once, when I left my flat to throw the rubbish, he locked the padlock on the gate! Another time, I was looking for a community cat and went upstairs to look for it. Happened that her son was also upstairs and he simply entered someone's house! The owner of the flat asked if he was my son! His helper came yelling for him a few minutes later.
Fortunately, I have a good relationship with said neighbour and both of us are in early childhood education and knowing her son has mild autism, I understand her situation. The child is a young adult now and I have also moved out of the estate.