I have a black belt in a mixed martial art focused on self defense in the real world, of which one of the primary pillars is “never be on the ground”.

Wrestling is excellent for subduing a single opponent, but is not suited for dealing with multiple attackers. You can be the world’s greatest wrestler and perfectly lock your opponent out, but it doesn’t help you when his buddy comes and kicks you in the back of your head.

We assume that in any self defense encounter you will need to defend yourself against more than one person.