There are sparks in the internet that the average BTC per person is about 0.026 value at $2,771.34 now. Due to how many nations, institutions, cooperation's, groups and entities that are hoarding and those who plan to buy and never sell, do you think scarcity will be a big issue or not?
There is nobody who doesn't have bitcoin or doesn't have more than the amount of bitcoin he has now, because bitcoin is scarce, and he can't find any to buy. If Bitcoin were that scarce, the price wouldn't be dropping right now. In fact, the price is dropping now because the demand is relatively low. Scarcity is not the issue here; the demand is.
There is enough bitcoin for all. Everybody has not demanded it. If everybody were demanding it, the price would increase to a level well above a thousand dollars' worth of bitcoin now, which might be worth a million or above. If that happens, people won't need to have hundreds or thousands of bitcoin before they can be worth a fortune. If that happens, buying 0.026btc might require you to spend tens of thousands of dollars before you can get it.
The only time scarcity can be an issue is when all the bitcoin has been mined and all are being held, while none are trading, and nobody is ready to sell. This way, the price will first skyrocket due to the increased demand and the pressure it will create in the market and after all are out of the market. When there is no longer any supply (no more mining and selling), there will be no more price because there is no market to determine the price.
So as long as there is a market that demands and supplies bitcoin, scarcity will never be an issue. Anybody who wants to buy Bitcoin will buy, and the more people that want to buy, the more the demand will increase, and it will reflect on the price as well.