I can't believe I'm commenting on this because I think it is a fruitless pointless argument and if you've got nothing better to worry about in your life than whether or not people are parking in the P&C spaces then wahey for you!
But your note of entitlement is so bloody annoying I'm feeling I have to say something. Firstly blue badges don't mean disabled people have to use the disabled bays, the P&C spaces are provided as a courtesy by the store and anyone could in theory use them, it is just kindest to leave them for those who need them. This has fuck all to do with rights.
There may be some people with disabilities using parking facilities who technically don't need them. There are some parents of able-bodied eight year olds who use but don't need the P&C spaces. And since the vast majority of disabilities aren't visible no amount of watching people get out of their cars is going to help you on this one.
However, whilst being a parent is hard and inconvenient at times being disabled is monumentally shit a lot of the time. I should know since I am both. Since I cannot and will never be able to drive the point is academic to me but could you please remember that kicking disabled people, accusing us of taking the piss when we seek help and so forth hurts people who are already having a tough time.
In future I will comment on all threads on this topic to say 'Nyer nyer nyer nyer nyer nyer' since that is the only response they deserve.
Oh and if DH takes DD to do the shopping his preferred solution when she was small was pop DD in sling, unload shopping into boot of car, return trolley, return to car, pop DD into carseat. Now she is walking she holds on to the trolley. HTH.