It's partly a UX thing, uniswap can be expensive at certain times. This is beind worked on actively with rollups. But there is still more work to do. It's part

It's partly a UX thing, uniswap can be expensive at certain times. This is beind worked on actively with rollups. But there is still more work to do. It's partly also because you have to bridge from traditional finance to cryptocurrency somehow. Many of these centralized exchanges are allowing that bridging. Usually that would involve meeting strict banking and KYC regulations. FTX decided that was too much of a hassle and incorporated in Bahamas to avoid it.