About the house idea, she has. I moved out at 18 (her age) 2 years ago, since then I have privately rented a flat and a house (and looking to move back into flats next year) and both times I've had to have a guarantor and had to pay a deposit and first months a month in advance. So, unless shes going with the council I don't think shes thought this through. Also, in my area, you have to declare that you have an under 18 living there which some places won't let you rent there. I'm sure that's different in other places though. In both my contracts I'm not allowed to have children living at my house.