NO! Well maybe if you're athletic, have a good technique, have the time, the body and balls for it, even then you have to get noticed by a good organization to get sponsored/payed a decent amount of money. But MMA careers are usually short and it takes an immense toll in the body.
Not all MMA fighters are lucky enough to avail good pay in return to their services, most got troubled paying their bills, rentals and may other expenses on their day to day life, asides from the risk of getting fatal injuries or any unexpected incident that may result on losing their life.
Love of sports is something that make others venturing in that kind of business but I would consider a high paying job, knowing that such is a lifetime career, not like MMA that when you reach at your 40's, you will going to start a new life of struggling again.