Nope, I'm the same. Almost 21, never dated. Heck when two of my siblings and my mom were my age, they were married and had a kid. I'm fine with it though. I don't see myself getting into a romantic relationship, at least not in the near future. :)
No, I don't think it's weird. Some people get into serious relationships when they're young teenagers and others don't start dating until much later in life and others have no interest to data at all. Everyone's different, te just gotta do what te what te want to do so te can find that guy who te will be happy with for the rest of your life.