Obviously, without proper bankroll management, it's easy to get frustrated especially if you're placing big bets.
That 2% rule sounds good in theory, but it really only makes sense if you have a large enough bankroll to enjoy betting. Otherwise, it can get boring over time if you're only playing with small amounts.
Just imagine having a $100 bankroll and you're limited to $2 per bet, that doesn't sound fun at all.
But at the end of the day, it depends on you. If your goal is to train yourself to be disciplined with larger amounts later on, then starting small and strictly sticking to your bankroll management is a good way to go.
That's right, even though you can play defensively for a long time, if you continue to place bets in small amounts, it will eventually feel boring. It will indeed look disciplined by placing bets that have been set, but to develop the capital that we have, it will feel long and there is no sensation of tension to produce a big win that will be obtained.