Some people will argue if someone says it's raining outside....
Nothing wrong with regrets, but as Willie said I also wish I hadn't lost money gambling in my colllege years. But I also learned from it and now that I have money I'm smarter with it with investing, long term type stuff for my kids. Had I not done stupid in college I might not know what I know now. Yes I regret not investing that money then instead of blowing it gambling, nothing wrong with that.
Same goes for not banging more chicks when I was younger. If I had maybe I wouldn't have met my wife or have 4 great kids but I would be lying if I don't think about sex in my younger years and what I missed out on.