Yup, exactly. I know someone in their early 30s who just quit their job and went abroad to spend a month living on a beach learning how to surf. I'm in my mid-40s and can't fathom doing that. I could do that; have the finances and professional flexibility to support it, but the main thing is I just don't want to. The idea of living on a beach in somewhat uncomfortable conditions just doesn't appeal to me anymore. Some things I'd enjoy or tolerate 15 years ago are things that I just don't want to do today. But at the same time I'm disappointed I don't have experiences like that in my past to look back on fondly.

Don't get me wrong; my current situation is fantastic, and I'm in a much better place than I ever would have expected if you asked 25-year-old me where I'd be in nearly 20 years. But I'm still aware that there were paths I didn't take, paths that would have also made me happy.