Coding doesn't involve as much kinetic and immediate action, and I can't imagine it being infantilized. When it comes to violence, you can be weak, and so "like a girl". "Driving like a woman" I think means to drive naively, like a child, which women have generally been seen as equivalent to for thousands of years. (Edit: not that I agree with any of that, of course; it's how gender is constructed)

Now that Ip Man is a popular movie (?) is "punch like a girl" still an insult?

I haven't seen it. One can only assume insults like "[violent act] like a girl" is still used among male youth to horrible effect, encouraging more violence and self-hatred.

As a male youth with very little experience with people in general, I hate people who make me look bad.