Oh you kids today. Well, here's the deal...basically, to me, a jockstrap is the best thing to wear under my workout clothing. When you do athletics, (or help a buddy moving furniture) you need support from something breathable. Especially if you have low hangers like I do (i'm being frank) you need support.
Support is not bunchy cotton briefs with a fly front and piping around the legs, boxer briefs are worse, and boxers offer no support. I wear boxers 24/7 except when I'm at the gym. When I was dancing, I used to wear what is called a dance belt, which was one strap right down (or up) the middle. Yup right up the ass. BUT...it afforded much needed support, and it was a minimal article of clothing--exactly what jockstraps are used for, and therefore faces no danger of extinction. Why don't you and your friends go get jockstraps? Don't mock it, don't go EW I don't understand, just experience something manly, and see if it benefits you. Maybe you'll be surprised, maybe it'll do nothing for you, but the best way to answer your question is to find out for reals. They only cost $3.99 at a sporting goods store. Eventually, you'd learn the advantages.
Now, someday, when you're a little older, I'll explain the fetish portion of jockstraps to you.