It is a common problem.
I do it to some degree.
Do you have joint pain?
Before I got custom orthotics (basically, they shim your feet for stability) from the podiatrist, I started to get some issues in my ankle, and bunions (dumbed down to my understanding= misalignment of longest metatarsal bone to big toe). Orthotics have been great. I wear them 7 days a week to very strong success for the last 11 years. Worth every penny.
I was underwhelmed by the molding of the first set of orthotics by the doctor. Second set of orthotics a couple years later, similar. Next time, I'm going to mold my own and order online.
Neither doctor asked to see my daily wear boots. To me, DUH! I mentioned to the second doctor and asked if he would like to see the wear pattern on my boots. He was interested.
Almost like wear patterns indicate conditions of the machine! If you were always wearing off one side of your tires, what would you do? Just replace the tires?
Consider if you should be evaluated by a qualified doctor.
If someone had told me, before I went in due to pain, that people don't naturally walk right for their lifetimes, I could have extended the miles on these feet.
For what it's worth, in my early 20s into my 30s, I used to go climbing and backpacking with heavy packs in Chaco sandals without issue (slowly wearing off the edge of the tire). I didn't always have these seemingly progressive issues. Candle that burns twice as bright burns half as long.