Bitcoin is only part of life. An important part, but not everyone can devote themselves entirely and completely to it, and it is also not necessary for each and every to devote themselves so selflessly to bitcoin.
There are likely ways that people are able to monetize their devotion to something like bitcoin, especially if you actual realize that bitcoin has a "monetary" component to it...
Hadn't you noticed?
It is best that everyone develops in what he is especially good at.
I don't know about that.
When I was a baby, I was especially good at sucking my thumb, but I did not develop that skill.
Last time that I checked, skills can be learned, refined and even discovered.. interests are similar, even though sometimes we might be able to identify what might be longer standing interests, but we are not always going to know the extent to which we might grow (or age) out of some of our earlier-in-life interests.
I'm not likely to be a good bitcoin core developer, so why would I get in the way of professionals?
If you had not realized, bitcoin touches upon a lot of theoretical and practical areas, and you do not even necessarily need to know how to code software in order to get involved or to be involved in bitcoin.
Go figure?
Who would-a thunk?
It seems to me that if we contribute even a small share to the development or adoption of bitcoin, it will already be good.
Speak for yourself.
Bitcoin does not take away from other interests that people might already have or develop, but there might be some kinds of interests (or even currently economically viable) areas of the economy that become less viable and/or less practical because of bitcoin..
If you are a young person then maybe it is more important to identify those areas, and if you are already established in a career, there likely would be a variety of considerations if a career change (or even retraining) might be considered as plausible, practicable and/or even prudent.
There are a lot of people who hardly even have any clue about what is bitcoin, even though they think that they do and there are even other people who are not sure if they know about bitcoin, even though they have heard the word.. maybe even several times.
To summarize, do you think that everyone should devote to bitcoin because bitcoin can also enable monetization? Perhaps I really do not understand everything about bitcoin, and then it is not scary, because no one stands still, and sooner or later I will learn enough. However, I am sure that money in any form is not all that matters in this world. Moreover, money is only a small part of the important. Yes, money is involved in a significant part of other important processes, and here the influence of bitcoin cannot be overestimated, but money is only part of the processes, not the processes themselves.
Of course, I know much less about bitcoin than many of those who discuss various issues on this forum, but I know much more about bitcoin than almost all my acquaintances outside the forum, because many do not even know basic things about bitcoin. It would be strange, given this understanding, to assume that everyone will suddenly devote their lives to bitcoin, and that anything good will come of it.
I am far from thinking that I know everything or even much enough about bitcoin, and perhaps in time, when I learn more, my opinion will change, but so far I do not see the point for everyone to devote their lives completely to bitcoin.