I think I stand with mom on this one. The immaturity to me doesn't lay with collecting dolls rather it comes from you not being responsible. You should be contributing to the household you live in ~ before ~ spending frivolous money on yourself. It is wonderful that mom support you during your time of need but I think perhaps you are taking advantage of her. Call me stern though. Afterall, I expected my kids to pay rent or move out at 18.