Every investment become risky when you do it without proper analysis and education. But if you got all the required things then i don't think your investments become unconventional or risky even if you are buying BTC. For example, we all know BTC will cross it latest ATH of around $69k and when that will happen, a new ATH will be set and all the indicators show that it will be above $100k.

How an uneducated person with less or no knowledge could believe my statement? Like i was reading about halving today to write an article and my cousin was sitting beside me and he asked what it is and i started to tell it;s about BTC halving and how BTC will cross $100k for sure in the future and he was like " what if the company ran away with your money" i was stunned for like 5 seconds then i asked him what do you know about BTC and what if i taught you he said, no i am busy in-game (showed no interest even i could clear his all doubt) But i can not force him to learn about it because as Mandalorian used to say "this is the way" (haha).

The point is, if someone has the knowledge then he/she knows the risk will be reduced and the lack of guarantees and promises that you aforementioned has nothing to do with BTC in fact it has to do something with your knowledge and mentality about BTC based on your past experience or knowledge (again). The answer to your main query is--> i haven't bought BTC yet instead earned them and don't have the courage to sell them now.