Its practically the same situation with tits
you dont really need really big tits. but they just look and feel nice and make a woman look feminine. Its a mental need not physical
same with big dicks. Theoretically you can get a girl off with a 3-4 inch short dick no problem but both of you may just not really get as horny and that will be the problem.
Big dicks are cool. Mines average 6" and a little thicker than average, but im a large guy. Id like it to be very large. My gf is usually the weakest link in that her pussy starts hurting after long sex, even while we use KY even for vaginal and from the start. She totally couldn´t handle a 10 inch wang. fingering her with 2 fingers instead of one (i have size 15 feet and huge hands) is rough on her. and shes 5"11!
Yes I like to comfort myself. But even if no woman in the world preferred it that way- Id like to have a 12 inch wang. Idd take it out and show it to people every day and everybody would be jealous
its just an innate thing