If you are going to make me put a coin into a cart because you don’t trust me to be an adult and tidy up after myself without being nannied, then I am going to do my damndest to bypass your lock and leave a mess out of spite.
In the shops where I am trusted and not required to pay a coin (I never even carry cash these days) I tidy up because that is the decent thing to do.
Maybe where you live you are an outlier and not representative of the average person behavior, like you are a better person than the average. At least where I leave there is no coin system and people leave carts all around. I suspect that is even worse than what I see because there are employees always gathering carts.
Yeah, might just wanna remember that the people that clean up your mess aren’t the same ones who put a coin lock on the cart.
Maybe you don’t care, but your rage isn’t really being channeled in a way that gets vengeance on the right people. It just hurts your working class allies.