I'm new to cryptocurrencies and I would like to know, is there any possible legal issues with cryptocurrencies? I'll appreciate your valuable ideas and please help me.
That would depend on where you live. Since this section is only for Bitcoin discussions I will focus only on Bitcoin.
If you live in any of the following countries you should be careful with using Bitcoin as it is illegal.
Ecuador, Bolivia, Algeria, Morocco, Bangladesh, Nepal, Vietnam.
In the below countries it is not illegal but it is either restricted or non regulated.
China, Egypt, Mexico, Saudi Arabia, Russia
You can read more about this from the below sources:
https://www.investopedia.com/articles/forex/041515/countries-where-bitcoin-legal-illegal.asphttps://bitcoinist.com/11-countries-bitcoin-still-illegal/