Imagine that you are a new player in the crypto world and have no idea about this topic.
What are you doing now? Read the book? You invest your savings in bitcoin, maybe you look at other coins (alts) or maybe you see that the price is falling and you're waiting to buy even lower. If so, do you know when to buy? What's your plan for this moment?
So you mean a new player just put money on crypto without understanding what on earth they are doing? Since they don't know the topic in the first place.
A plan will come up later on after understanding the risks. Can't put myself in the scenario you have given because back when I'm new to the crypto world, I never put a single cents on that without understanding the basics even how good and bright the future of crypto to the look of the others. I want to see how good it is by doing my self-homework first before engaging and putting the actual money. Even how positive people back then, it's difficult to just follow someone saying that you will become rich in bitcoin someday. Some of them can't even explain what's this stuff all about.
And since I did my homework, then I see that it's making sense to test the waters in crypto and worth to put a shot compare to others risky
"investments" that can be found around. No such thing as latecomers even for let's say I just realized it now as we speak.