There's 2 very different schools of thought here. The traditional way is use artificial devices like orthotics to make corrections for whatever is wrong with your foot, posture, or gait. There's a lot of money to be made this way because custom orthotics and visits to the doctor cost hundreds of dollars and quickly adds up. Then there's the naturalist school of thought that says orthotics actually make you dependent on them and weaken the foot. Your doctor will never tell you that for obvious reasons. The natural people would advise walking on your bare feet as much as possible, picking up things with your toes, and wearing flat shoes with no arch support. They also advise you to land on your forefoot, not your heels, when you run because that's a natural way to run which protects your joints. Some actually tell you run barefoot. They have their own set of evidence that you can find if you search the web.
Personally, I've gone back and forth, but right now I lean towards the natural way. At 52, I know my body doesn't function like it did in my 20's, but I don't want to be dependent on artificial devices so I can still be active into my 80's and beyond. A few years ago, my feet would hurt after playing tennis, and the cure seemed to be getting sport orthotics from companies like Superfeet. As an added benefit, they filled out my shoes better for my narrow feet. However, I've become conscious lately about not getting dependent on them. Now I walk around in bare feet at home, and I wear flat shoes with little to no arch support to work and to the gym. Any running I do is done with minimal shoes and a forefoot strike. My feet have adjusted and I'm feeling fine. I played tennis without arch supports a few times, and my feet felt fine. However, I'm using a pair of Superfeet with my present pair right now just because it fills out my shoes for a better fit and my narrow feet are more contained.