Before 2015 I don't recall hearing the word "Bitcoin" or "blockchain" in real life nor in forums that I frequently visited nor in video games and social media. From 2015 to summer 2017, those terms were rarely used and few members of the family and friends heard about it from me but not really involved. By winter 2017 and the hype following ATH more and more people were talking about it, yet still limited. Now by 2020 and the new ATH, I see so many people involved in cryptocurrencies in general, holding many coins, few are trying to mine, some forums created subs dedicated for cryptocurrencies. I won't deny the influence of famous people like Musk but for sure they showed up after Bitcoin already had a solid base.
I would like to imagine how the crypto world will be after 5 years from now!

No doubts there are so many people around the world who haven't heard of bitcoin, many people find the word bitcoin so strange but it's just a matter of time bitcoin will be known as it's good news will keep spreading across countries. We can clearly see it that bitcoin popularity is growing with time, some individuals who didn't know about bitcoin are now crypto enthusiasts so what is required is just time bitcoin popularity will keep growing.

There would always be those that would be ignorant on some developments or world innovations until they come to a general acceptance. Cryptocurrencies would always be strange to some person and bitcoin most of all because, its a developing niche of it's own and isn't a generally accepted one most of all and as such, there is a limit to the extent its advertisement can go not minding technological limits as those in the rural areas can't afford this basic needs of life.
Also, urban dwellers too. Some persons might be familiar with the team and if you ask them what is bitcoin, they could only stop at 'Bitcoin is a cryptocurrency' and that's all. It tells you to what extent people have refused to be curious about what is trending in there society that has little or no effect on them. It never becomes a thing until it has some effects and to that fact, people would always be ignorant.

Use the pandemic Covid-19 for an example. Its only been about a year and almost the whole word with exception of some tribes that remains unexplored or accessed not to know of the pandemic mean while, bitcoin has been around for some 11years yet, a lot of the world population are ignorant of the term and its niche.

In my country also many who do not know bitcoin. But I still explain as best I can. They mostly still don't trust bitcoin and blockchain technology. I'm sure there are still many who are not familiar with bitcoin. I also believe that one day bitcoin will be more accepted and more popular.

If you want people to listen to you then change the way you present or say something if it didn't work in the start.
"How you say something matters more than what you say" that's human psychology.

I wouldn't go into details because it's very easy to exploit people if you pull their right strings, everyone can be exploited including me (which I wouldn't recommend and is morally wrong)

Tell those people - Future is cashless, You don't need to rely on Bank's network to make a bitcoin transaction, You don't need a bank to store Bitcoin, Bitcoins are stored on your computer or ledger wallet ~~Explains ledger wallet~~

Tell them honestly how volatile the bitcoin marketplace is if they're here to make a quick buck after being new then they'll most likely be a victim of a Ponzi or lose their money trading on 10x leverage on the trading exchange because it's tempting to trade bitcoin and people who're new into this space most of the time are victims of Hype.

they don't want to know maybe they have their own reasons maybe they don't believe in bitcoin so they don't have a sense to know bitcoin more deeply, or they are too busy with their daily work so knowing bitcoin for them is just a waste of time.

This is what mostly happened, people don't believe in Bitcoin because they heard only FUDs about Bitcoin. So, finally they are worried and not interested to buy Bitcoin as a digital asset. We must help them to know the truth about Bitcoin, explaining to them the advantages of being Bitcoin holders. Tell them how to invest properly in Bitcoin and some true successful history about Bitcoin holders. This good information may lead them to trust a bit and gradually interested in buying Bitcoin.

Man in my own country Indonesia, some people even store their money under the bedroom!

yeah, it's on villager place but the reason was so funny, because they don't trust the bank, they said something along this line " What if the bank got on accident like a fire spread over or the bank or robber rob the bank, what about our money? "

Yeah it's still more and more popular over here, but I can say, we are still early.

Speaking of the share on your post, I also had a similar case, they asked me what this is, how can I sell it for cash, how can I trade, sometimes I don't even know how to explain it to them? better understand BTC, especially the elderly, they do not have much contact with current internet technology, they are really old-fashioned and do not know anything about technology.

Only teach those who are willing because for those who are not, you will receive a lot of opposing comments. Hard to explain if the person in front of you already formulated conclusions that are not founded. Ignorance usually is the reason why many people don't like bitcoin. And even us, if we don't know the subject it is hard to convince yourself about its existence. So if someone is willing to listen, then, let him know what you know.