[oelmekki]

Just as programming languages are all (well mostly) doing the same thing.

Cryptocurrencies are tech products, various projects try various ideas. You'll have the initial blockchain idea from bitcoin, the privacy blockchain from monero, the programming contracts from ethereum, the decentralized exchange from stellar, etc.

I'm perfectly fine with that, I prefer to see people create new projects to test new ideas rather than to hear them complain bitcoin is not doing what they want.