This is a quick AIBU (in Chat...)
Needed to go to a supermarket which has a large foyer area with nothing but a bench in it, and one external door, and two internal doors, one to go in and one to exit, and the walk from the external door to the entrance door in a direct line is 3 metres away from the bench, even further for entrance/exit doors. Had 9 year old with me, didn't want to leave him in the car as it was very hot and not safe enough to leave engine on so that there is air con, and not safe to leave him outside as cars drive almost up to entrance of supermarket, so I sat him on bench inside in the foyer, which is airconditioned, with a handheld video game thing turned down low, and with a face mask on, while I went in and did shop. He sat and focused on game and didn't move or look up the whole time. Does that sound reasonable?