Imagine having to not P2P all your bitcoin with that 2012-2017 time frame how high those bitcoin would have been worth now but nonetheless it is still a good accumulation tactics, early investors are seriously the diamonds hands so I do understand why you think spending using bitcoin is like hand over a diamond to someone 

Nonetheless I also see it as same, there is nothing more precious that I value more than bitcoin right now, I am also stacking with DCA since it was around $16k and not looking to sell off anytime soon now.
But still I can’t do away with the use of bitcoin for payment purposes because from the country I come from it is the most easiest way to make cross boarder transactions because commercial bank charges are way much here and also the hassle is something that it a big deal here, but with bitcoin it is much more easier and faster than other options, but still this doesn’t affects my accumulation process too.