Except you can't break bones or die playing in a band in the garage. I liked a good scrap or two back in the day, but getting punched in the face every Saturday for 0 dollars and to impress the town whores isn't exactly smart. If they want to get into MMA, they should join a gym and roll with some instructors. I like that guy in the first video who was applying to be the next Steve Mazagatti. He was good at telling them to give him "more action" but was too stupid to realize that one guy was cooked after that one punch.
They are not doing it for any type of money or to impress anyone. They are doing it for fun. And to see if you can kick some ass. They have a ref, they have gloves and mouth piece. As with any sport you can get hurt. its just mma is more dangerous than other sports. You can clearly see that the 2 kids in the first video have great sportsmanship.