Jokes aside, yeah no, there's no specific age for this. You might feel like there's a cutoff age because of societal standards. Some people have a tendency to look down on people who aren't doing great romantically and/or sexually past a certain age. Due to this kind of peer pressure, people can feel weird, ashamed, or "broken," like they have no chances of finding love if they don't do it young enough. This isn't a problem with you or your age; this is a problem with toxic standards that society can have for romance sometimes.