Investing in altcoins is just too risky, some people have traded altcoins and realize good profits and many traded and loss all they had. Altcoins is good for experience traders that can take the risk to invest or trade on it, I don't think it is proper for young investors to consider to invest in altcoins because of to make good profits. People take the risk of investing altcoins for greed to get quick money, the probability of not having good trade and investment in altcoin is very high. During this bear market many altcoins could not not survive the bear market. Bitcoin is the most reliable and trusted for investment.
Actually, not all altcoins have the same risks. Top altcoins are a bit safe for investment, both for old and young investors. Just consider the top altcoins like ETH, BNB, MATIC, SOL, TRX, ADA, or DOT if you don't want to take a too high risk. Only new altcoins, meme coins, or altcoins with weak fundamentals are not recommended to invest for young investors, it has a big risk and is hard to predict their future. New investors who have less experience will be difficult to know the price fluctuation of these types of altcoins, their prices sometimes are easily dumped and pumped. This may lead to losing big money although there is a chance to gain big profits as well.