Are you investing for long or short term? If long then hodl the bnb. You can aslo trade bnb for short term. This is not a financial advise .am just giving feedback because of previous experience.
If he does not know how to trade, then it is better not to trade, because he will lose the funds he has if he opens the wrong trade. BNB is already one of the top coins so holding these coins would be more convenient than other new coins, as it would be a risky decision to consider any new unfamiliar coin for long term investment. Many crypto users lose their funds by trading because they have little knowledge about trading.
that's what's going to be bad. beginners who don't understand trading, don't even want to learn to trade first. they put their money in assets that they see on social media that people are talking about.
have no skills and they will end up at a loss. or they feel cheated by crypto.
at least they are beginners should learn well how the assets are feasible and safe for investment. so no one will feel cheated.