More about concern about their car being dinted by the door of whoever parks in the adjacent bay I’d say. I try to park in a space with a wall or the trolley barrier 4” from my nearside to give me more room in the bay on the offside and I will not park next to a car with a child seat in the back.Rare stroke of consideration for the adjacent driver there I dare say
Either that or it was for the benefit of a sizeable passenger seat occupant..