In the year 2130 all of the Bitcoins will have been mined and the only reward at this point is transaction fees,if most people are using Bitcoin just as a store of wealth, then there are very few transactions, which means there is very little reward for mining and so a lot of computers would pull out of the Bitcoin network. Would this be a problem? If large Bitcoin transactions occured sparingly in 2130 and beyond, would the Bitcoin concept still work?
Yes, It would be really a problem to the crypto community if the remaining bitcoins will already mined then it would be really become a huge problem because the produces of bitcoin will be lessen as well as the transaction in which this transaction is one of the very most important factor, because just what like you've said transaction fees are the rewards for the bitcoin that has been mined. But I think after this happens or maybe in the year 2130, bitcoin will stiill function and work because many people will still operate and use bitcoin so probably bitcoin will still work until that year comes.