Do you believe that the adoption of bitcoin in every country can less the unemployment rate? As what I have observed most of the countries right now are accepting bitcoin as a payment method.
Cryptocurrencies can help to decrease the unemployment rate of every person in each country but adoption and using of payment method doesn't help a country to make their unemployment rate to decrease. It just depends on what job you are talking about because most of the jobs today not really using cryptocurrency as a way of payment method. And you can't separate the fiat currency to cryptocurrency because have it's own use.
Is there a possibility that crypto will be legalized and become as a legal job also?
What legal job are you talking about? Mining? Crypto is a digital currency.