I think Real estate and Gold are safer but Cryptocurrencies can bring a lot of profit if you have a exactly choice. For me, i only invest in cryptocurrencies 30% my saving money.
maybe the legal issue is my reason for not investing fully in crypto currencies because in my country the government has not formalized the crypto currency as the applicable currency and even banned transactions directly
without any legal reason, we should not investing using all of our saving.this risk was very huge , i am wonder if someday it run not suitable with out hope we will be stress.