Is wearing underwear necessary

Answer 1

Underwear is not a 'compulsory' item of clothing, but it may be appropriate depending on the situation. For example, lounging around the house, or a really hot day, you may choose not to wear underwear for comfort. However, going out somewhere or some sports, underwear may be a good choice.

Underwear also has the benefit of reducing irritation from your trousers; providing a 'safe zone', should your trousers become loose and fall down for whatever reason, and also helps keep your trousers cleaner, as the underwear forms a barrier between your body and your clothes.

Of course, some people never wear underwear no-matter what they do.