I guess there is no such thing as too young for the child, however some parents may be too young for the task  ::)   several years ago while ice fishing, I was aproached by a couple ski-ing and pulling sleds with gear. they were out for an overnighter. While we were chatting about conditions and such, I noticed an infant was tucked in blankets in one of the sleds, I also noticed everyone including the infant seemed very relaxed and happy  :)...so guess it depends on what your conditioned to  8-)