They don't have baskets at this store. You have to use a push cart. This probably has something to do with the amount of theft that occurs in this area. I'm also probably not equally abled to you so a _bicycle_ is more useful to me and pushing that around a store with a cart getting groceries would be a ridiculous chore.
The world would probably be better if you didn't assume that everyone's experiences are identical to yours. Otherwise I can just keep using my gas powered truck to get groceries. I can easily afford that and it's "not a problem" for me.
An EV bicycle just seemed more considerate in several ways, and unless it has the features that speak to my needs, I don't see myself using one.