Cryptocurrency is every where so it has a future someday, And other country use altcoins to make some transaction or using it as a payment of buying goods and items and no worry to carry some money.
Of course, there are certain guarantees that some altcoin will be used as a means of payment in a persons daily life. But if you take into account the amount of altcoins on the cryptocurrency market that exists today, then most of these coins will leave the cryptocurrency market. I believe that you need to be careful when choosing altcoin for investment, so as not to lose in future cryptocurrency battles.