What is going on with some parents?

Villas - What is going on with some parents? They don't check to see where their kids are staying. There is a friend of my son who sleeps at our house all the time. No parent has ever called me to see if he is actually here, nor have they stopped by to see what kind of home they are allowing their child to stay in. He doesn't come with a change of clothes or spending money in case he gets thirsty or hungry between sleeping here. He rarely has clean clothes on and looks like he doesn't shower. He is very polite but seems to be looking for someone to care about him.