But the haste comes from the realization that they are late to the game. I would advice such people to not get FOMOed, though better said than done. There is always a chance to buy when the prices come down because it is a constant cycle and no price is ever absolute in a speculative market.
Often a few months of stalking charts and patience pays off but many newbies who have never had a first hand experience in stocks, forex make this mistake.
In this context, newbies also make the mistake of settling for shitcoins just because they dont have enough to buy "1BTC" (which seems to be a norm) and go for tons of shitcoins. Essentially they wasted their money right then and there. But I dont think that this can be changed without the person being informed prior to investing. In fact these newbies are the ones on whom the shitcoin bagholders drop their shit and exit.