Honestly it's gotten to the point that the blockchain tokens that weren't even built to be currencies are better currencies than bitcoin. I think the most important steps that bitcoin ever took towards adoption was the acceptance of bitcoin by vendors. That's what the community was really shooting for in the early days. No one is going to use a currency that costs more than a few dollars per transaction. Even a few dollars pretty severely limits what you are likely to use the currency on. There's a reason credit cards charge a percentage, and unless cryptocurrencies keep their transaction fees similar to what a credit card fee would be for a small-ish transaction, people aren't going to be using it to make purchases any time soon.