Well I know this is anecdotal, and I can't say how widespread this behavior would be, but I'm certain my wife wouldn't let my 5 year old boy put his iPad on display out of embarrassment.
What I like is when other parents open up about their experiences. There seems to be a big chasm between official and de-facto parenting.
When pressed, at least, the grandparents that just gave us the look because our three year old can pinch-swipe open up how they did the same with us back then, just with older tech.