You do wash your own hair on an everyday basis the actual dirt which caught upon the head due to wind blowing is washed away.
If you're have a gentle daily shampoo at home, you can in fact use it to wash your mane on a daily basis with adverse effects. https://moran-hyllested.mdwrite.net/hair-loss-causes-5-specific-types-of-hair-loss-uncovered-1724409433/