In truth, retail is a pretty awful business. People love the romanticism of it and the "simplicity", but really it's a shit way to make money the vast majority of the time.

$100k of money sitting on shelves depreciating. Narrow hours when most of your business comes, but need to hang around all those other hours for the trickle of other customers. Dealing with theft. Dealing with bottom tier workers. Dealing with the general public

It's really best when you are already retired and just want something to do for fun.