There are many countries where bitcoin is not accepted legally, so how do you use bitcoin in that country? Usually if you raise the level of bitcoin use in that country then you may get into legal trouble.
So how do you use your earned bitcoin in that country.
Looks like many bitcoiners on those places tend not to use their Bitcoins ,instead what they are doing is keeping holding for future usage.
maybe they have plans on going abroad or visiting some places when the country has bitcoin accepting,or for the chance of one day their country will allow crypto to be adopting.
There are many factors aside for p2p and trading.
But of course they might be trading and use p2p to at least have some profit while the banning is at place.