Yes, I believe they would greatly benefit from having a decentralized exchange that doesn't require them to send their funds to an external service. It seems like a lot of people have been getting scammed while trying to trade on centralized exchanges and I think this is partly due to the fact that they are trusting a third party with their assets. By using a decentralized exchange, users can keep their funds safe in their own wallets and still be able to participate in trades without having to worry about losing their coins to hackers or scammers.