Yeah, in exchanges. Which will ignore the wishes of the actual currency owners, just like happens today. A vast, vast majority of staking users will not have the required 32 ETH for self-staking, and will be delegating this to third parties. PoS gives power to the exchanges, which should not have this power.

The difference to PoW is that the exchanges can do the staking with very minimal effort. I would guess majority of exchanges give the staking results to customers while taking some % fee.

I don't have any problem with this in general, I don't think it is wrong to do business like that. But I personally prefer PoW because it looks like it naturally separates the mining work from exchanges, creating more decentralized economy.