yes lot size depend on our account balance and i say that we work in market with low lots and we do not use big lots size order in market and beginners must use low lots in market and beginner follow the good trading strategies and beginners work with careful trading methods and beginners always understand the market risk management and work in market with experience then beginners make good earning in forex market
The small size of lost is better for the beginners. If the beginner is well trained and he got the training from the Demo account and has the experience then he can choose the any size he want to trade. In the the start he should choose the small size it is better for him.