i got metro 2033 redux but its m rated so can you help I do not know how to take out the blood and swearing form the game so I can play it
Just looked as well and for me it's indeed shown as PEGI 18 which means Metro Redux is classified for adults.
As far as I know you can't enable this, you need to be adult in this case. I guess in your case you can't even start the game right?
It might be, because your Google Account is a kid's account? In this case I could understand why this game doesn't work for you. Then you would only be able to play it, if your parents let you play on their Google account for example (if they have Stadia Pro too or would buy the game on their account).
Otherwise I can't see what else you can do. In this case it looks like you have restrictions on your child account:
no i can open it just I am not allowed to play it so if i can turn if off that would be amazing