You obviously need decentralized exchanges to deal with problems like centralized exchanges being able to trade on their own system and naked short coins down to 0.  Then the market would have to consider the DEX as the leading exchange price-wise instead of the margined casino centralized ones.

I do not exactly know what goes on behind the scenes when a coin/token gets listed but you'll know that a team behind a platform knows what their doing because the maintained volume for their coins is always high right from the beginning.  A prime example of this is Ethereum.

It would be naive to think that the market activity will just come without some kind of manipulation going on to jump start trading.