Because either you stick with altcoins, bitcoins or even bounties; with the fear in you, theres a tendency to never learn and you keep making the same mistakes over again.
First set your heart to be ready for the challenge that investment brings, then you go for it.
Or he can choose bitcoin as the investment, and don't use bitcoin to trade if he is too scared. We should know how good we are in trading, and if we don't have better skills, we can skip for trading and only focus on the investment. Many people stay away from trading altcoin, but they can invest in bitcoin so that can help them to make money. Although they cannot make a profit every day, they can make a profit from bitcoin, which will be a bigger profit for them.