I do notice that some people naturally don’t allow bitcoin in any of their daily transactions even when it faster and easier, they still don’t prefer using it,
Maybe what you mean here is that people aren't using Bitcoin in their day to day transactions because if you are saying that they don't allow bitcoin in their day to day transaction then there is wrong with it because miners are the ones who are allowing it not the people themselves.
One thing more is that, I can agree maybe that they transaction speed of Bitcoin is faster compare to others but easier?? I don't think so especially for those who don't know how to create an address etc.
I have noticed this a lot, Some classes of human,Sometimes when they are to receive money from another country like international transfer sometimes it takes 2 3 days to arrive,They will advise them to use bitcoin and they still don’t accept it even it faster and easier. Now how come we make bitcoin come to people.
One reason is that they aren't knowledgeable enough to use Bitcoin. Bitcoin will not come to them but it is the opposite. Let the people come and use Bitcoin if they really want to have a faster and easier transaction like you said. One reason that I see too is the risk. Since Bitcoin is volatile, there is a chance that the value of the Bitcoins they're holding right now in USD will not be the same tomorrow.
Another one is that maybe they got scammed with Bitcoin that is why they chose to avoid it. Either way, people have different reasons to avoid it but still there are some who wants to use it.