Why do military people get married so fast?

In alot of the cases is because of the money. but in most cases its because if you're not married your girlfriend or boyfriend cannot travel,or move in with you. and that would totally suck. they will never be together again cuz once you enlist in the military they are not allowed to leave within certain miles of base and they will be working alot. so if you're not married but have a girlfriend or boyfriend yall will hardly see each other the only time will be in Christmas vacations when they are allowed to leave where family is located or your gf or bf can visit you on weekends.