yes the pads in compression shorts don't help enough
No, Infact some people wear compression shorts as underwear
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.
No.boyshorts are underweAr
A jockstrap or compression shorts would be the best, to keep your genitals supported while you run and jump.
No
Yes, it is recommended to wear underwear under bike shorts for added comfort and hygiene.
It is safe for diabetics to wear compression shorts. In fact, compression shorts may even help blood flow for a diabetic. It certainly isn't going to hurt them.
Not usually. Usually when you have a jock on, you don't wear anything else with it, just your athletic gear on top of it. However, if you are wearing compression shorts, sliding shorts, hockey shorts, etc., you should wear those over the jock. Some people (inexplicably) wear a jock under a swimsuit, too. If you're wearing the jock for running or track, you just wear your normal shorts over the jock, no underwear. You can wear a lot of modern underwear (briefs, gripper jams, etc.) INSTEAD of a jock, particularly if the underwear fits closely and is supportive.
No, but wearing tight underwear decreases the amount of semen you produce compared to those who wear boxer shorts. Do not worry if you wear tight underwear - it will not make you infertile.
No, and most do not. Many do wear compression shorts however.
he wears boxer shorts
You wear sliding shorts under athletic appearal for sports such as baseball or softball mostly without underwear but it's optional