Parenting: "Whoa. I didn't handle that situation very well! Good thing you're wearing a parenting suit. Let's try that one more time to make sure I get it right before you take off that suit and I try to handle it for real." Nice, right?
Dating: "It was good to practice that pickup line on someone wearing a dating suit. I can see that didn't go over as suavely as I imagined. Let me try one more time before I go out and attempt to interact with someone for real."
Relationships: "Let's do the scenario where we get really mad at each other so we can figure out the best way to solve our problem without actually hurting each other when we get it wrong."
In most situations there aren't do-overs. Our actions have a real impact-- the first time.