Sorry for the stupid question. I scoured this forum and didn't find anything - but i may have missed something . Anyways, my son is four months old now and i'm starting to do the research on child trailers for us later down the road. I have a road bike that i'd like to connect the trailer to. We are possibly thinking about another kid later down the road but are there any trailers that don't roll or tip over if i happen to fall off my bike? Also, what age did you folks start taking your kids with on bike trips? (I know, 4 months is WAY too young).