As long as somebody earns money with the new coins, it will continue to exist. Only if you absolutely can not earn any more money from it, the flood of new coins will certainly end.
Even though the coin is new but can provide results and can be used correctly, of course the coin will be used by many people and will be used.
if only a new coin is useless and has no value, it will become rubbish and useless.
so we choose new coins and we find out whether they can be used correctly or not.