Crocodiles do take care of their young for a short while though. They carry them to the water and stay around for a bit. I can imagine a lot of dinosaurs did the same: guarding the nest and then leading the young somewhere with food a little more safety. Maybe staying with them for a few weeks.
I think most herbivores where a little more caring for their young than the large theropods. Since they were often living it heards and thus a bit more social.
It's hard to know for sure though, fossils can only tell us so much.
Edit:
There's a website that shows all locations of where fossils have been found and of which dino. You can find out what walked around the place where your house is now: http://www.paleobiodb.org
In my case, since I'm from the Netherlands, mostly aquatic reptiles and some small flying reptiles. There used to be a shallow ocean here.