Well, the truth is that staking is just an option. People choose to stake their altcoins in order to earn a few bucks while holding but don't you know that there is a huge risk in regard to your fund security? Exactly, whatever happens to the exchange, if that will collapse or turn into a scam - you can no longer get your money back. And this is the mean reason why most of investors not preferred to stake but rather keep their coins in their wallets at least they can blame other people. And aside from that staking doesn't offer a huge percentage usually, it was just 3-5% annually.