My 13mth old is a competent walker and runner already (save for the occasional trip over) and is a right busy-body. He loves running about and walking on his own (not holding a hand) to the shop down the road. I know that reins seem the sensible option, but I don't see any kids with them any more - why is that? Any suggestions? Someone tell me it's my only option and tips on using them. Why am I so reluctant? How come no one else's kids need them?