.I would like to ask why are you asking about it? Are you planning to buy cryptocurrency and hold it for 10 years?
The OP did not respond after getting so many replies which makes wonder if they were just a drive by asking for quick advise and quick gains. Old timers know that this sort of mentality is what makes traders lose than gain in the long run.
Of course they might be willing to hold for 10years but a better method available to predict that is by looking at the last 10years price change and we all know good that has been.
With more mainstream attention and use, governments are not going to ban bitcoin use or prosecute those are using it of that is what the OP is scared of.