Fifty
The problem with getting old is that one-by-one all the things that you dreamed of as young and you got to try when got older, feel old and demystified. Suddenly you look out and see less "magic", less mystery, less things to make you excited, fewer major surprises around the corner.<p>I'm only (//already) in my early 30s but it scares me to think how it might feel, at an older age, to not be able to see anything in the same exciting eye that a teenager does. And the things that might still feel exciting, to not be able to try, due to constraints that "grownups" have (health issues, family, work, other responsibilities, lack of friends willing to participate)