Yes you are right. I agree with you. We have to pay transaction fee for withdrwal any currency. That's fine. But which is as famous as the exchange. Its transaction fee increases the same way. which is a problem.
There are already 20,004 different cryptocurrencies on the cryptocurrency market and their number will increase every day. Already, many duplicate each other, practically without creating anything new. Under these conditions, competition between them will sharply increase, and since the size of the transaction fee is essential for the participants in this market, this is where the real competition will be between cryptocurrency teams. Having a very large choice, investors will, of course, choose those projects that provide for lower transaction fees. Therefore, in general, on the contrary, I think that transaction fees will fall over time.