Re: Also Parent and Child bays
@AC - I really can't see the need for parent and child spaces at all and certainly not nearer than the disabled spaces which are often used by people who can only walk very short distances.
Well, when you have kids that you have to put into a car seat and can't open the door more than a fraction then you might appreciate them. As for reins, yes - my kids were on reins for a good while, and still get shouted at occasionally - but that doesn't stop me wanting to put another layer of safety in place. It's not hard to have P&C spaces accessible without battling idiots in cars..
As for distance - it happens that at my local supermarket the disabled bays are now 5m further away - I don't actually care about the distance, I care about the route. I'd be happy with remote P&C bays with a secure route (as I have seen at a number of stores).
I am happy for you that your children were all beautifully behaved and you had enough hands to hold all five of them whilst simultaneously carrying a weeks worth of shopping... but that's not reality for most people.
Personally I'm now right at the edge of needing those bays - the kids can climb in, but they can't yet do up their belts, so I do need to open the door far enough to lean across them and clunk-click...
Not long before they can do that though - they can certainly undo them themselves (yes they always ask first)