i don't agree with this. paper trading gives you the opportunity to first develop a profitable system and test it on historical data. as long as you have not completed this first step you should papertrade instead of blowing up real accounts. the next step is the psychological part of trading. for that you need to trade in real.
first learn to walk and then learn to run.
Be careful...the phrase
"paper trading" is kind'uv vague with some traders.
To some it means a simulator at their broker, to some it means writing down trades on paper and to others it means typing trades into a spreadsheet. Further, there's the issue that many paper traders misuse it such as often seen in "demo accounts"...problems that will occur in real money trading that will not occur in paper trading or backtesting.
Yet, if someone is still in the "development" phase of their trade method, they should be only
backtesting and not simulator trading. Paper trading (simulator trading) while still developing a trade method can cause problems when a trader traverse into real money trading.
Sorry, I hate the phrase
paper trading because it means different things to different traders whereas the phrase simulator trading is a little more specific.
Simulator trading should only be used to learn the broker trading platform and then simulate the trade method to see what the results are in comparison to the backtesting results. The real debate is how long should someone use a simulator prior to moving into real money trading ?
Tough answer considering everybody is different.
Any problems in the simulator results is most likely due to psychological problems (e.g. discipline problems to stick to the trade method) and the trader must resolve those psychological problems
prior to any more simulator trading and prior to traversing into real money trading.