Wasn't going to get involved with this but I do want to recall an incident that happened on the P4.

A few months ago a wheelchair user tried to get on, there were two buggies (one of them full of shopping) blocking the space and the driver, very reasonably asked the mums to fold down one of the buggies and move the other which was parked at an awkward angle.
Blimey! the fuss they made about it - to the point of accusing the driver of discriminating against them. It was a cringeworthy scene and the buggy users made themselves look very silly. No wonder some drivers don't enforce the rules as they should - anything for a quite life no doubt.

My point being that stupidity and selfishness are not confined to particular groups and I have seen some incredibly thoughtless use of buggies too - especially when they're being used as shopping trollies.

I concur with a previous poster that if we all exercised a bit of common sense and consideration for others, it would make a huge difference.