DD moved to a new school this year and luckily has settled well, but she has recently made friends with a girl who I'll call G. G is very polite but also incredibly shy and apologetic to the point where it makes me slightly worried. G and my daughter have become very close and while I like that my daughter has such a close friend G spends almost all of her time at our house, to the point where she sleeps over often and showers here. G doesn't ask for anything but I have also been washing her clothes as a few times her clothes have been quite dirty, which worries me about her home situation and whether or not her parents are doing a good job.
As polite as G is, we are not incredibly well off and having another person in the house is costing me more. I want to bring it up to DD and G but I have no idea how and I don't want G to think I dislike her because I don't.