Learning a new language takes time, a lot of time.

We speak mostly Spanish, Chinese and Hindi because the majority was born with them and spent years learning them to communicate with other people who already speak them.

English spoken by non English native speakers is what many people learned to communicate with people speaking other languages than their native tongue.

But most of them never reached (or will reach) native speakers' fluency. So in a way it can be seen as an inferior product with many flaws (like my English for example).

If switching languages was as easy as copying software, we would probably speak infinite languages.

But in reality the amount of languages one can learn during a life time is very much finite (and the incentive and opportunity are very limited in general)

So, yes, bitcoin is the most powerful brand right now but there is nothing inherently peculiar about it, if another digital coin offers the same features people will use it, regardless of the brand.

Learning German if you are Japanese, live in Japan and communicate with Japanese people, on the other hand, it's a big investment with no real obvious gain beyond intellectual fulfilment.

anyway, there are ~7,000 living languages used around the World right now, there's no reason to believe that at least the same number of digital coins won't be in use once digital coins will become an everyday tool.