Now bitcoin is growing very fast and it must end sometime. Most likely something like 2017 will happen. Therefore, if I were you, I would not sell all bitcoin, but part of it needs to be sold while its prices are so high.
^ all depends on the needs of the holders. if you really need funds then it is fine to sell the Bitcoin you have, but if you don't need fast funds then you don't need to sell Bitcoin, and I recommend HODL until the price is really high.
Definitely. There could be no specific answer to this question that fits everyone. All of us here have different situations to deal with amidst this pandemic and the choice between spending or holding bitcoin depends on someone's needs. Some might hold, some might sell at some point. But both are justifiable but considering the price of bitcoin now, it would be better to hold unless you have an emergency to use your coins.