New coins and old coins are worthless if the owners don`t do effort on it and already dumped it. It is always depends on the coin owner or CEO, depends on their resources and the will to make it a valuable and profitable coin.

according to your judgment it is correct ... because almost all coins that have just entered the market can be directly dumped ... and I experienced it myself ... but I have heard that now is the era of Hold tokens ... not selling directly after receiving coins Prize campaign ... patience is the right answer when we have received coins from the campaign ... so the price reaches the ICO price again ... and it takes more time ...

Saying new coins are worthless in my opinion isn't right. It doesn't matter if it's new or Old, what use case is it bringing into the real space? Should be the question.  Also check the team behind the project, do your findings before concluding that new coins are worthless.