As for crossing the road, in my opinion there is no such thing as too early. My son, from age 1 1/2 would point to the stop sign and freeze. Now, on our walk all the little ones have followed suit. I do a fire drill every Sept. & January...the little ones just like crawling on the floor, I thinkAs for other emergency situations... Hadn't really addressed that. Brings up a good point though; what is we were to become unconscious or something? They're really too young to call 911.