Getting into any kind of fight on the street is bad, but it’s even worse if you pick a fight against a trained fighter, unless you’re trained too. Even then your chances of getting hurt are pretty high unless you’re Khabib or something.
In a video below we can see a guy fighting two untrained guys while it’s obvious he’s trained in MMA or some other effective martial art. As you can see untrained guys simply have no other options as their chances of winning are down to some lucky punch which is very unlikely to happen.
https://streamable.com/1zixn
Fallon Fox, Transgender MMA Fighter Who Broke The Skull of Her Opponent
https://bjj-world.com/bully-gets-slammed-and-knocked-out-after-punching-a-peaceful-guy/
Jiu Jitsu Guy With No Takedown Skills in a Street Fight – FAIL