few
Some people do, but most people wear underwear.
Some women wear underwear under tights and some do not. Tights are made to be worn without underwear, but many people do still wear them.
no she does not and never will
Of course! Many sports players wear it as underwear and not just for sports, even as an everyday underwear. There is no reason not to.
yes
The answer depends on what you consider to be underwear and in which country. In tropical countries people are more likely to wear light underwear whereas during the winter people in cold countries are more likely to wear heavier underwear.
people where to wear pants so they do not eat cake
Some people are more comfortable not wearing underwear.
No, Infact some people wear compression shorts as underwear
You should start by wearing hers.
People wear underwear. People wear an undershirt and underpants.
Yes, yes they do.