Because they think that meme coins can give them fast money by buying and selling the meme coins, but they do not think that meme coins can give them profit but only temporarily because meme coins are one of the trends in the crypto world. They can buy meme coins and after they profit from meme coins, they should leave it and not try to search for the other meme coins because that will not guarantee them to make another profit. They should invest in bitcoin or other altcoins that profit them more than in meme coins.