Probably not an AIBU but posting here because genuinely unsure.
I have a 3 month old baby with needs that means he was given a radar key shortly after birth. I’ve never used the key and always used normal baby change facilities.
However, yesterday he needed the use of a changing facility quite desperately so we stopped at some services and there was a queue for the baby change so I used his Radar key to access a different facility and went straight in to sort him out. When I was finished and opened the door a man holding his baby grabbed the door from me as I had the car seat and back pack etc and thought he was just assisting me out the room but he then commented ‘oh wow this is a big baby change!’ And then stepped inside to use for his baby. I said ‘oh it’s not actually a baby change, you need a radar key to use this bathroom which my son has because of his disability’ he looked me up and down for a moment and I said ‘it’s up to you if you go in there but you probably shouldn’t and should maybe wait for the baby change.’ And then I left but as I walked away I did see him close the door and he didn’t go inside.
I don’t know why but I felt a bit bad, like I shouldn’t have said anything to him but also there’s a part of me that thinks he shouldn’t use it because then the next person to come along could have also grabbed the door and prevented it from locking again and therefore the facilities get abused and won’t be available when someone really needs to use them.
I guess I’m just wondering in future if this happens do I have a right (maybe not the correct word) to stop people using them if they don’t have a radar key?