Today when I was loading my shopping in my car I noticed a baby (12- 14months)and a toddler of about 2/2.6 in a car by themselves.
Put trolley away and stayed a bit longer and still no sign of the mother and as my DC were strapped in didnt want to go into the shop so had a drive round the carpark and saw no staff to tell them. Anyay drove off but then decided to drive back and low and behold they were still there so went into the store and told the customer service who said. they'd keep an eye on them.
5 minutes later the mother came out with her shopping and a coffee in her hand...
DH said I should have minded my own business as she might have been close to the point of hitting them (or whatever) and decided to give herself a break. I think it is very dangerous and people underestimate the effect high temp has on small kids