In countries where Bitcoin is not legal, it is not possible to pay salary through Bitcoin because there will be legal complications. Governments will not approve Bitcoin as a substitute for fiat currency. Moreover, if payment is made in Bitcoin, the government will not get any taxes from it. I think this is not possible until the government of any country approves Bitcoin. If a country like El Salvador makes such a plan, it is possible to pay salaries through Bitcoin. However, if any employees engaged in small businesses that are not officially registered are paid through Bitcoin where there will be no hindrance.

Exactly, at least until crypto will be massively accepted. But that's not gonna happen soon.

It would be hard to do it massively as a lot of commerce are still not open to accept bitcoin. As we all know there is still an existing mindset of the public about the negative views on using bitcoin. Though I do agree that it will be a good change specially in trading and international transaction, it is something that will take a long time for people to accept and adapt. Hopefully though, one day it will come to that.

I think it is far from possible because everyone needs a stable and fixed amount of income to manage their expenses. Bitcoin price volatility is a major concern and it will not be manageable for governments/ companies to send a fixed amount of BTC to every employee.
For BTC to be used for salary disbursement, it should be accepted/ regulated in the world. 

It would be really awesome if bitcoin payments were offered instead of fiat currency. We know that most of the world is currently accepting bitcoin payments in shopping malls for purchasing various products. As the popularity of this Bitcoin has increased day by day, it can be understood that the government of the countries will pay salaries in Bitcoin in many countries in the future. If we focus on one country then we can definitely say that bitcoin payment is really good and convenient. If we look at El Salvador, we can replace everything with Bitcoin. In El Salvador everything starts with bitcoins and what factories and institutions are paid by bitcoins. There people can take whatever salary they want in firat currency and bitcoin which makes the country really attractive. Now if the governments of other countries approve the replacement of fiat currency by Bitcoin then it is certainly possible to move forward economically. If the salaries of various organizations are paid by Bitcoin then I think it is definitely a positive step.

OP, I think the reason why some people have not accepted to use Bitcoin is because it is not a stable currency like fiat, so even if wages or salaries are paid in Bitcoin, most people will sell it back to fiat immediately they get paid. The reason is that they do have an urgent need to spend money, so they will not hold the Bitcoin they received from Pay; they will just sell it off. It really did make sense to some people, while to many people, it doesn't. Your friend is only living in imagination because Bitcoin cannot be used to pay a salary unless the government has finally approved of Bitcoin being used as legal tender.

I would really like to get paid in BTC if it were a preference or may be get my salary in 50% fiat and 50% BTC.
That way I would get the flexibility to use both at my convenience but yeah the sad reality is that the governments are far from making this a possibility.
Although are jobs that do pay in BTC but our day to day jobs don't have that option as of yet.

But this all depends on which government they are working under, or will I say it's based on what kind of employment they have with the government, because not everyone who is under the government pay check is living above a country's poverty level.

All civil servants are receiving their salary from the government, no matter the level of which they have attained since they are being classified grade by grade, and that's how their salary defers. Here in my country, with just my weekly signature earnings, I can consider myself more financially stable than most of the government employees out there. My point is that not all who are under the government are rich. Even if they are Rich, Bitcoin is not only for the poor. Rich people also want more if we are to look at it as a means of acquiring wealth. Most of them also want to try out new things and, at some point, avoid the public's eyes in some transactions that they will want to perform.
 
I agree with you that not everyone needs Bitcoin like we do here, but those above-mentioned points alone do not restrict anyone from wanting to own Bitcoin. We have those who were financially stable and famous even before Bitcoin, but we all have them right now, bagging more Bitcoins than we are doing. Owning Bitcoin is a choice that anyone has to make for themselves; either you want it or you turn a blind eye.

It entirely depends on what country we are talking about.  Some countries are of course much more conservative than others and wouldn’t even think of allowing this but others will be more open to it. For instance China wouldn’t even consider it, but I believe nations such as the United States would eventually be open to it. In fact I don’t believe there’s any laws against it right now?

I get a lot of my income in Bitcoin and other crypto. But I see it no different than a salary even though I do not have a boss.

The only issue is having to learn how to not to spend it. Because it seems to me that spending a cryptocurrency like Bitcoin is so easy and efficient, that you might not notice when you start spending large amounts of BTC. Unlike with paper fiat money, BTC does not possess the quality of physically tangible value. But since spending is a good thing then that might make BTC into a strong positive force for the economy, if it were the global money standard and all salaries were paid in BTC.

Of course if the government accepted that, then the price of Bitcoin would skyrocket like in the past. We would see ridiculous prices.