Most youngsters nowadays probably heard about bitcoin, the only difference is what are their perspective about it, its either bad or good — can be used for financial gains or used for malicious transactions.
Almost many young people in the digitalization era know bitcoin because the internet is so wide for people to learn many things, the view of bitcoin depends on how far they take the approach to learning it and if some young people use the internet for things that are not productive then I'm sure bitcoin too will not bring them to the conclusion for investment. Especially if there is no one who introduces bitcoin directly and the approach via the internet is sometimes not optimal when it is not directed more correctly by other people.
As for malicious transactions it's another thing that individuals use or take advantage of and I think that's just a small group and not generalized in general because talking about malicious transactions shouldn't just apply to bitcoins and actually a lot of that happens in fiat currency and every crime is based on occasion.