You are right about it but if the newbies will come to me and will ask me what is the best currency to invest their money then my answer will be very simple. I will just refer then to the safest investment currency that are on top 5 in coinmarketcap so they can just skip the research especially that they are still a newbie.
This is what I often recommend. Always check what's on the top of the list as there is a reason why they are in there. Their value may go down but there is still a high chance that they are just experiencing correction and will eventually go up again. I even apply this on myself as I don't have time to study everything that trends in crypto so I often invest what I think is on the top list of Binance. I guess this is for someone who chooses to HODL like me but if a certain person are so greedy and are always in a rush to earn more I guess, he/she should study how crypto works and start learning how to trade, I think that stuff is risky but profitable.