As of late there's been a lot of talk about CEX which stands for centralized exchange. In short it's an exchange for crypto assets that is run with a business front. This means there are always known people to go after which we have see the SEC do time and time again.
Because of this DeFi and DEX was created. DeFi offers some benefits but still too much risk in terms of hacks. And DEX platforms simply have not caught on to the level of CEX yet. Again this could very well come down to security vulnerabilities which constantly keep happening.
DEX could be front and center these days as people are looking for solid and very easy ways to swap and use their crypto assets. However I can understand the bottlenecks still to this day as the other day I needed a little SOL on a wallet to make a few transactions. This resulted in HOURS of me trying to find a half decent way to move some funds over to SOL, what wallet to use, what wallet worked with what swapping platform and a whole slew of issues.
But that's kind of expected right? Being that things are decentralized there's no one person or persons that makes the decision that a single wallet or a set of wallet types has to be approved by every platform or that certain pairs be setup.
DEX will struggle for mass adoption I feel untill these UI issues are figured out and it's easier to get some funds in or a way to pay for fees without having to put money into a wallet.
Honestly I like what SWEAT coin did when doing transactions there you can simply watch two or three short videos which will cover your transaction. It's nothing crazy but something as simple as that or a sponsors your fee was paid for by could go a long way in making things more seamless for users.