Altcoin trading is also a sort of investment, with a big risk! You need to have good entry and exit point, look at the exchangers now, everything is red for days, probably entry point is now or will happen soon. Couple weeks ago everything was green for weeks that was exit point. Of you don't know how to recognize this points then you will lose most of invested money, with trading alts only good thing that you can abandon the ship in any moment and save a bit of your money.
You are right, trade in alternative coins is a very risky occupation. And I would not advise newcomers to do this. Successfully it can be done only by a person who already has experience of trading
Don`t destroy his dreams right on a beginning. He always can count on luck, or he can decide to follow others. Bitcoin was underestimated in 2009-2010, even in years later many people were talking that bitcoin is one big scam, that this pyramid will collapse, but look where bitcoin is now. Bitcoin is one example in sea of others, look eth, look at the some other tokens price gone incredibly high in just few years, and new projects are constantly coming out one of them will rise as well.
Most of us here have some favorites in alts, for newbie wouldn`t be a bad thing to do some research and find some good projects for his taste and invest in them while they are in early stages of development.