Crypto is new and unknown for most people, and high risk-high reward. Lemonade stands are tried and tested, and most people understand them well.
I think a better analogy would be someone walking into a trap-house and buying drugs: they might have the high of their life, or they could get robbed. There are no regulations, so it is up to the individual to use their "street-smarts" to be successful. A person who gets robbed buying drugs or loses Crypto in a scam can be criticized, whether this is "victim blaming" or "being realistic" is just semantics.