DD is really getting into imaginary play. She has 2 basic baby dolls that are made for younger babies and she also has tons of stuffed animals that she treats as baby dolls. She's 19 months. Is she too young for cradles, strollers, and baby dolls that actually do things? I hate to start this thing too early, because I know I'm going to be buying endless dolls for the next 8 years. Should I just let her use her current dolls and animals? If it makes any difference, I'm expecting DD#2 in early October, so she'll be swimming in real baby gear soon enough.