So I have at&t cell phone service and my bf wants me to open up a family plan so he can be on my account since his credit is too bad to open his own account. Is this a bad idea to do or not? We been together for 2 1/2 years. Also is there a contract I can have him sign just in case we break up and he decides not to pay his part? I love him and I pray we always stay together but the AT&T contract is for two years and who knows what will happen in two years.