Because ethereum is hopelessly broken, inefficient, unscalable tech. You do not want your entire currency running on it. If it moves to PoS, it will be even wor

Because ethereum is hopelessly broken, inefficient, unscalable tech. You do not want your entire currency running on it. If it moves to PoS, it will be even worse, with frequent chain reorgs causing tx reversing and contract balance non-determinism. If you want to see a vision of broken eth, just look at polygon.