Altcoins in general are far from useless. There are some altcoin projects that are just silly and probably dont have much of a future. There are, however, many altcoin projects that can potentially have real use cases in everyday life. You have to remember that cryptocurrency is still in its infancy. 25 years ago, the internet didnt seem like it was going take off very well. Now its everywhere and used for more purposes than I could ever imagine. As crypto becomes more mainstream, there will be plenty of opportunities for real use cases for many altcoins.