Centralized exchanges can easily expose users data but they have the best platform for traders, highest volumes etc and on the other hand Decentralized exchanges have nothing to do with users data, pretty more safer than centralized exchanges but lacks good interface and also has high trading fee and of course lacks good volume, is there any where else to run to ?
Do you want people to tell you why they use decentralized exchanges or centralized ones? For me personally there are two reasons why I am afraid of centralized exchanges:
1. Most centralized exchanges require me to provide them with KYC data.
2. The coins that are on my exchange account do not actually belong to me.
As for trading volumes, transaction execution speed, and transaction fees, centralized exchanges are better than decentralized ones.