It depends on how they'll implement it, if it'll reward even 1 ETH holders then everyone will be able to join if they want.
Unfortunately I think they plan to allow PoS only to the few top wallets.... in any case even now most ETH are going to the ones already rich enough to invest in expensive mining equipment.
But don't worry... judging by their past update speed, the PoS should be activated at about 2050!
I don’t know what everyone is wearing in this ETH, there are already many other blockchains where you can create your tokens, where the transaction speed is higher. Well, if the POS is introduced only for the elite (whales), just definitely do not need ETH.