Is it normal i don't like being the youngest?

As I grow up, I more and more dislike the fact that I'm the youngest of my siblings. I think work and once o started dating my bf, it hit me more that I lack qualities I should have but because the way I was brought up as the baby, I lack those qualities from being nurturing to being responsible. My bf is the opposite of me and he notices that but cause he's the only guy and has two younger sisters. He grew up having responsibility and being caring. Im used to being taken care of or having other people take care of other things and I'll just lay back. As a young girl I didn't know or realize how much it would impact me later and now o realize it and it sucks. I wish I can have a younger sister or maybe I'll get a puppy to gain some responsibility. Even at work, I can't take initiative, its just not in me. That's why I dislike being the youngest.