In the last three years I've been in operation I have had only 1 infant out of 7 who crawled or went up/down stairs. Every other kid has never been exposed to stair crawling or had their parents practice this with them....they have stairs in their home but don't do it with their kids. Then they all scream and cry when I start working with them to learn. These kids have all also hated tummy time according to their parents and so the parents just didn't do it...so when it comes to crawling up stairs they have no clue about supporting themselves on their hands. Maybe I was just lucky my boys both took to crawling and climbing stairs without a fight. Is this happening with everyone else's 10-12 mth olds? (I posted before about my 18mth old dcg who still doesn't pull to stand, btw) The rest of my infants have all been about 16 months to start walking and doing stairs somewhat confidently. I have them go through the motion of stairs at least once a day up and down, since my playroom is in basement and we eat upstairs. Anyone else seeing this trend in their dckids?