If I had touched another's personal property when I was a child, it was an automatic trip to the Loo to have my ass tanned. I was taught not to touch anything that didn't belong to me, without permission.
That included the grocery and department store shopping trips, relatives' houses, etc.
In my experience, parents don't teach that any longer, nor are they disciplined when they do muck up someone's property with their grubby hands.