I prefer small capital to start trading for newbies because they have to know about the trading strategies and they also can learn a lot even from their small capital of investment. But they should learn some basic strategies of trading and also they can watch some tutorials on youtube as well.
That's the ideal for a newbie traders given that they already have an adequate experience and knowledge in trading, that's the way it should start and if they can grow that and they become really good with trading, they can start risking a bit more bigger funds to try and make more profit.