On the bus and my son's friend and his friend who I don't know get on, aged 13. I am in the non-priority seats a few rows from the front and the boys get on after me and sit in the priority seats.
As the bus continues through it's route the bus fills up and some older ladies get on the bus, one with a walking stick. The boys don't move from their seats so I offer my seat to older lady with walking stick but some older ladies, in 70s, still left standing.
The boys didn't notice me and I was out their earshot unless I raised my voice. Would you have said anything to them in this circumstance? If it was my son I would have wanted the friend's Mum to draw it to their attention but I wonder if other parents might see that as an overstep. They had their faces in their phones the whole time so probably weren't even aware of what was going on around them.
YABU- You wouldn't have wanted someone to have a word with the boys and seen it as an overstep.
YANBU- You would have wanted someone to draw it to their attention.