From so many points of views, Bitcoin (BTC) trading is investing with the aim of making profit and making gain,I have understood it purpose and it is vulnerable to it's stakers.for one to stake means he/she is ready to profit or lose.
Yes that's the aim, to make more money or put yourself in a position where you become a large scale trader by saving the profits instead of cashing out.
Profits and loss is included because there is always risk in this industry. Don't confuse investing with trading, it will rekt you and that's base on experience.
Be wise and find your strength, where you are good at, time management. If you have time to learn more about trading then do so. But if you work full day for a company it will be difficult to maintain it and you would be better off investing.