I'm not sure the age isn't a bit younger. I think the "extended childhood" of modern society might be a root cause of some of our social ills. There's definitely some degree of variation between people and their developmental timeline, but I got married at 19, and I do think I was ready. And that happened after a reasonable amount of partner-testing and sexual activity.It would be great if teens did not have sex until the are emotionally and physically equipped to handle it. That would make them about 19-20. Unfortunately, that is not happening and there are so many societal and family issues at play as reasons.