98% of people want to be part of bitcoin world because of it usefulness or benefits.
A very strong and confident remark. Do you have concrete confirmation of such "statistics" or is it just your desire? Show me a link to such wonderful news. It would be a big win if bitcoin was popular at that percentage.

Maybe it's 98% of the users of Bitcoins, we don't know we can't really get exact stats when we are talking about bitcoins and cryptocurrencies because everyday there is new stats that we can generally find.
Around 22% of the adult population holds Bitcoins in America therefore this stats is definately up and down.
maybe this is still not certain, okay, there are indeed a lot of people who are here because of satisfaction and feel the benefits, but on the other hand you forget other factors such as beginners who just go with the flow here because they are impressed with other people's results obtained previously.
I don't think it's based on those who feel the benefits but it's curiosity and a sense of wanting to try because other people have tried it first and they are quite benefited in that regard