If you could Rethink about things in life

I think we all do something at some point in our timeline for a reason, that reason being tied with our previous choices on the matter. But after we see the aftermath of our choice, sometimes we begin to develop "regrets". I don't think anyone should have regrets of their choices. You chose what you did at that time, tailoring every past decision up until the exact time the decision was cast. So following that train of thought, why would you regret it? The future is ever uncertain so whatever the outcome, we chose it based on the insight we had at the time.