Actually altcoins have shown time and time again that they come with serious risks whether it's poor tech shady leadership or centralization issues. While some may offer short term gains the long term reliability just isn’t there, Compared to Bitcoin which is decentralized and has stood the test of time most altcoins feel like unstable experiments. To be honest for anyone looking to minimize risk focusing on Bitcoin does seem like the smarter move
For sure altcoin is not something anyone should look into as what they plan to hold for long time they are the real definition of short time investment and at same time quick money, (quick money in terms of making profit and also losing your invested capital it can all happen so quick with altcoin) if someone must deal with Altcoin they should treat it as something they just want to make profit and leave and not something for long term, bitcoin and other privacy coin like Monero is what I can consider to hold for long time.