Possibly women driving. How many times have you seen them struggle to get the supermarket trolley between vehicles to offload into the boot/hatchback!I never understand why people drive inwards. Much easier to leave if the space was reversed into.
Same with supermarket car parks and regardless of vehicle type.

Way back in the 1960’s when I worked for a year or so as a Driving Instructor, the proprietor of the School insisted we taught folk to drive forward into small places and reverse into larger spaces. Never sure this was always the best advice, but I suspect he thought this would minimise the risk of vehicle damage.
Incidentally, in many States in the US where it is normal for cars to only have a rear number plate, it is not legal to reverse into a row of parked cars. I was told this is to enable Police Patrol cars to see all of the number plates when driving around. Not 100% sure this is the reason I was told this.
