There are endless possibilities since future events are unpredictable. As of now, I really think it's still in its early stages. Full adoption would still happen sooner, if negativity would not escalate along the way. However, since its market volatility, and Bitcoin is not an unstoppable thing, there's still some chance that things would go the other way, if opression by the government and several negative news such as usage to illegal activities, it might affect Bitcoin's image and its future.

I would say that that is a certainty at this point. The adoption and expansion of cryptocurrencies around the world has been on a constant rise for years now. It advances slowly, but it advances. New regulations are coming out all the time in various countries, and more and more merchants are getting encouraged to start accepting crypto. There are still some technical problems to deal with, such as scalability, as well as the volatility of crypto prices, but yeah, give it 5-10 more years, and I think you would be able to use BTC or some other coin to pay for most stuff online, as well as for most stuff in general, in some of the most crypto-friendly countries. It might take longer for technologically-underdeveloped countries, or anti-crypto regions, but that all remains to be seen.

that might happen but not in a short time because now some governments in the country haven't really inaugurated bitcoin or other crypto to make transactions, even with things like that but I'm sure in the future crypto will have the same role as currencies paper (fiat) used by the community for their daily needs, and if all that happens in the future it might be very helpful to make it easier for the community to transact.

only bitcoin in one form or another (LN), as the rest of the coins could be around only because the current technology allows them. altcoins are not really needed for much, and a proof of that is that there is no serious project that ever became realized, out of all the altcoins

I think crypto can be best alternative for fiat but cannot be used in terms of daily transactions even if it becomes mainstream because of volatility as not everyone will be familiar with fluctuations. I feel stable coins can be used for daily transactions since it does not fluctuates like other crypto.

Impossible to happen, for bitcoin... It's already gotten too much bad attention (in the form of it is only used for drug operations or money laundering), and like many other people have said, a lot of the features just don't allow this to be possible.

Although, an interesting option would be ETH. A lot of the programming and new tokens that are done on the platform make it an interesting business platform, and a lot of its features like fast confirmations could lead itself to be seen in real-life scenarios.

That is possible but I am guessing there will be a long time frame before the global adoption of cryptocurrency will happen. Also it will co exist with fiat. We are slowly using btc and eth in daily transactions what's lacking is the additional adoption from the people in the third world country.

Possible but far from reality. First, not all governments will adopt cryptocurrency because it's decentralized. Second, not everyone can understand blockchain technology and won't take the risk to adopt it. Third, due to its volatility, it would be hard for bitcoin to be used in everyday transaction because the price are not stable at all.
Zimbabwe are slowly adopting it because of their economic crisis, people are looking for an alternative. Though bitcoin and crypto can still be adopted by other countries, only as an alternative currency but not as a main currency.

Using blockchain technology yes its possible to use it in daily life wait for 5 or 10 years and you will see the differense of online transaction using now and compare to that time. I am not telling it is BTC or ETH there must  be a crypto currency built for every country on that time.

Majority of governments all around the world are showing zero tolerance towards cryptocurrency since they believe it will take financial control away from them. Let's hope something good comes out very soon so that BTC along with other CC will be used in mainstream payment system.