A DEX will replace them for you if you want it to. I've never so much as registered on any centralized exchange and I've certainly never completed KYC at one, yet I would bet that I buy, sell, trade, and spend bitcoin more than ~99% of the user on this forum. I certainly wouldn't be giving up all privacy for the sake of $20 worth of some shitcoins (never mind the fees I would pay to the centralized exchange just to be allowed to swap that shitcoin in to bitcoin and withdraw the bitcoin), and I'm certainly not letting Coinbase sell my data to a data broker and risk identity theft for $20 of some shitcoins.