Actual investing is very boring and long term so if the teenager thinks it is something exciting then he will be disappointed most likely. If his mindset is that crypto and windfalls of cash from rapidly increasing single stock prices is what he plans on being part of then that is called gambling. Important distinction between the two

I realize there are a bunch of know nothing fortune tellers on tik tok that like to video themselves looking at cool looking stock charts on their computers and talk about the candlesticks and dips and all that shit but the only thing they are doing is fucking guessing and trying to make sense of the past so that it makes them look way smarter than they are and this can look very exciting to the ill informed