No way. It will create too much stress. As simple as that. But if you're like me you will not listen to all this advice. And you will start with even 30k as an 28y old. Well, at least you will always have an interesting story at a party It's just wiser to bet on 2 income streams. One fixed (job), one variable (trading/investing). Compounding is a key ingrediënt of future succes. Maybe 3mm will be sufficiënt to stop 'working'. At a minimum (from my view anyway).
I think a lot people missed the essence of the entire thread. OP's question is: Is $50k enough to set up a trading account and earn a full time living. OP never asked that we have 100% or 200% return each year or every year. So as long as you do not lose your shirt, you grow your capital. If you really get the edge and have 100% for one year, then you have $100,000 to start next year. Then you can continue to build from there. You just do not need 100% return the following years. But if someone is super ambitious, but have no edge and do not know how to manage the risk. Then that is a disaster.
How is the OP going to live without withdrawals from the trading account? Sure, if He/She doesn't need to spend any money to live then the account could grow. Personally, I like to eat from time to time, sleep inside and have my health insurance in place.
It's tough to know what the OP meant. I would suggest that trying to earn a fulltime living with a 50K account would be challenging. I suppose you need to define a full time living. If you want to trade instead of working for minimum wage at 14 bucks an hour maybe you can. I don't think there will be much opportunity to compound but I don't know. If you don't need any income (have a savings account to cover a years expenses) there is a possibility you can compound your account so maybe you have the next years expenses covered.
I am a full time trader....currently trading 40 hours of time each week for a nice paycheck, benefits and stock options from my employer. Also trading the markets / compounding my account. For now, based on the numbers, this is the obvious mix to have.
So you want OP to withdraw $5,000 a month after he deposit his $50,000? He has to build up his capital and let compounding work to his favor.