1. Politeness
  2. Comfort
  3. To avoid damp spots appearing on their trousers
  4. To conceal some of their body parts from being seen easily

Most of the overall population have the idea that they HAVE to wear underwear to be normal, but in reality underwear is only a recent invention, and because most people shower regularly there is no real need for it in these modern times.

Most men “go commando” from time to time; some men never wear underwear. It is mostly a matter of comfort and support.

I prefer freeballing because of the freedom associated with it.