I see no benefit to CEX other than exchanging cryptocurrencies into fiat money, and banks can act as such gateways, so there is no real benefit to CEX. Some centralized services try to SCAM investors by saying that DEX means we will not ask you for any data and we may do it in case of scam, but it is still CEX as you do not control the private key and so CEX and DEX cannot be combined in one place because they both mean the opposite of the other.
Really. I don't think so I would like to make you familiar with the contribution of CEX in this industry, Most people prefer centralization, Just a reminder, so moving onto the topic dear fellow, centralized exchanges played a much significant role in the crypto industry marketing and revolutionization. Even most of people are familiar with Bitcoin due to the crypto exchanges' market strategies and their campaigns. CEX's spends a lot of money on the market, indtiducing new features and Fund the onchain top leading projects develpemtn which greatly support the whole crypot ecosytem.CEX's fights back on the behalf of community for the industry regulation (Even their own goals are also included within it).
Not CEX fan but we need to appreciate their efforts, and give them full credit of what they did for us, DEX's are good custodial a lot of emrits better experience still most people dotn trust the DEX protocols and they prefer the centralized exch ages for their smooth trading. DEX's are evolving and filling their space and CEX's are well established ones. If CEX has merits DEX do own as well and CEX has their significant issues on the same time DEX as well are not free of room for the development.