Shorts in wrestling ala sambo style wouldn't be a great idea, so many situations in freestyle to grab and cheat which is why they haven't used those.
As for the for profit wrestling idea, it likely wouldn't make money for the reasons of it being harder than bjj and judo. You can practice judo/bjj between 50-75% intensity levels and be happy and never go above that, wrestling practice is at minimum 85-95% intensities.
Nobody wants to show up to a 2 hour practice at that level to the extent where it would be profitable. The only people who want to do that, end up at the university level. If i tried to run a wrestling program at my mma club, the only guys showing up are the fighters, the bjj guys wont show. They don't even like takedowns in bjj class, let alone work wrestling drills that involve high capacity scrambling.
Wait, you are saying that the storied and hallowed tradition of wearing skintight synthetic lycra singlets does NOT go back to the Ancient Greeks, and is instead a relatively recent innovation from that awesomely tacky era known as the early 70s?
Who could imagine ...
Vale tudo shorts and spats should be banned for men like they are in no gi jiu jitsu.
Spats are actually allowed in IBJJF rules as long as they're black and you have shorts over them.
Here is the reason why I would like to see it changed:
I train full time now in BJJ/submission grappling. Everyday I show up to practice, along with every other teammate I have ever trained with in bjj/submission grappling, will walk on the mats to train wearing the exact same thing they will step on the mats to compete in.
When I was training full time in wrestling in highschool, college and the Olympic level, Absolutely no one outside of the 16 resident athletes at the Olympic training center wore singlets to practice. No one. The only reason we wore them at the OTC was because it became a rule put in place by the coaches. No one in wrestling trains in a singlet.