I think it can be corrected, it is very difficult, and it has no effect on the body.
Because after all, after 22 years, when you pay attention, that is, when you correct it, you don't go inside eight, but when you don't pay attention, you go inside eight again.
People can't concentrate on this foot every day, so I don't think it is necessary to change it. Now that you have been walking for 22 years and are used to it, walking in the inner eight may also have something to do with your bones.