if by a 'real fight' you mean a ring fight or smoker match, then yeah I totally agree.
on the other hand, if you're referring to an unstructured 'street' fight, then I couldn't disagree more. there are too many variables that can't be controlled for, and is thus something I would strongly discourage.
Agreed. Do not under any circumstances get in a street fight. Especially if you're a trained fighter. If you lose, you will likely break your own bones because you're used to fighting with protective gear, if you win, you will likely go to jail because you will cause some serious damage.
There are so many times in sparring, especially with newbies, where you pull back your punch so you don't hit the opponent if they were too slow to cover up. In a street fight you wouldn't. That would end poorly.
on the other hand, if you're referring to an unstructured 'street' fight, then I couldn't disagree more. there are too many variables that can't be controlled for, and is thus something I would strongly discourage.