You don t really earn Money with POS , Yeah you might get +5% of your POS Coin monthly but everyone does get the 5% so what happens is that the total amount of Coins in circulation does increase by 5% to. So your share of the Marketcap does stay the same.
If you don’t think you earn money with POS you are in the wrong coins. But with me if I’m already holding the coin it just makes sense to stake. I’m in it for the long run