I don't understand. Why don't you like Bitcoin? Is it just due to the out dated technology? It's not the most convenient to do transactions with right now but the lightning network promises to solve that problem. I think exchanging Steem to other cryptocurrencies except btc also depends on the access of compatible exchanges. I know, for example, the exchange that I can use to convert my crypto into fiat only accepts BTC, only recently they added Ethereum. But ETH is not that good when it comes to scalability and speed either. So yeah, although for speed and transmission reasons I see your point but it's not always possible to due restrictions, especially when it comes to the final stage, converting Crypto to Fiat on an exchange which is linked to your bank account. The more coins they add on these exchanges the more feasible this concept will be.