Here is a reality: not everyone gets taught right from wrong properly. Much of what you think of as intuitive in this regard is actually just a product of your own upbringing and education; very few things are truly innate like that.
So when someone of any age messes up, I base a lot of my reaction on whether or not I believe they knew better. With kids, unless I personally taught them the lesson in question, I will often assume they weren’t taught it at all.
But then I do.
You get one. But then you know, and once you know, you bear that responsibility. It’s not about forgiving an initial infraction, it’s about looking at opportunities to be better versus patterns of bad behavior.
If a wrong was done, I try to draw rightness from it. After that, you carry the weight of your own soul.