Actually for starters, I don't recommend investing in altcoins. The only coin I deem worthy for investment for all categories of persons is Bitcoin. Aside Bitcoin, I can only advise you make enough study which might be a problem for newbies as they might come across confusing terms which are not in their vocabulary. However, Investing in Bitcoin only requires patience to invest for long term there you can reap your profits properly. Though you still have to study to know more about the coin and through studying you'll gain confidence in the coin because, you come to understand more and interesting features of Bitcoin. Aside that, currently in the crypto space, we have lots of scam project floating here and there. They even go as far as passing through the KYC process and some even look worthy for investment, but they are just waiting for a certain amount of market cap and then they'll just crash. Even proper study does guarantee that you'll be free from making the wrong decision towards an altcoin for investment. Now adays most persons tend to follow trends but they forget that trends are only for a while and after that, the coin might never surface ever again. But Bitcoin has given us the opportunity to be a part of an exciting future with enough profit if only we could sacrifices now and reap profits of our labour in the future.
To the newbies, not every coin that get listed in an exchange is worth investing, some are just bunny traps by scammers while some coins were stated clearly In their white paper that they should be taken seriously as a project for investment, because even the developers didn't expect much from their project. I have come across two cases where the developers stated it clearly, and that gave a clue that, before buying any coin it's important we read the white paper first before making any investment decision, and besides I prefer long term project to short term or trend, and this is the more reason why I just stick with Bitcoin. And one major fact about the market is that, most coins follow after the trend of Bitcoin, so why should I invest in coins that are followers when I could simple put all my investment in the most trust worthy coin(Bitcoin)