I agree. People sometimes limit themselves very much in using bitcoin, speaking of it as something that is already, at the moment, not enough. But there's always a question. Why not buy it now? Now it's still there, available, go and buy it.
The convenience that you are talking about, namely fast money transfers, in those moments when it is necessary, bitcoin simply has no equal. It is convenient in many ways, but some people literally create an icon out of it, which they pray for, saying that bitcoin does not need to be sold in any case. But I always remember that little detail when I hear such words, I remember that people are mortal, alas, and they have only one life. Limiting yourself for your entire life, saving on everything and being afraid to spend your investments , it makes no sense.
I keep hearing the same thing; some people say that they are never going to sell their Bitcoin holdings because they believe they will keep getting more in value over time, but what's the point? We make investments so that we can get profits, and then be able to use those profits to do something else, even if we invest the profits again, it is at least better than just holding the assets forever, because compounding is always more profitable than just plainly holding your investment without doing anything.
People need to understand that it is better to buy, take profits when it's time, and then invest again. If you need funds, use some of the profits for that, and reinvest everything else, and keep doing that in every cycle. This way, after a few cycles, you are going to have more bitcoins than you initially had, and they will obviously be worth more as well.
Some people just take the "invest and forget about it" phrase too seriously, but they should understand that it only means that you shouldn't panic sell, it doesn't mean to never sell at all.