I sort of fit into both categories. My sister is 11 years older than me so, though I have a sister, I grew up as an only child in the house itself since she was married when I was still pretty young.
She was a great older sister. I have such fond memories of going to the movies with her, seeing movies my mom would not have wanted to see. 😉 We used to go to the mall and be there all day shopping in all the little boutique stores. I first heard the song Miss American Pie in her little white car with the red interior. She was, in my eyes, the coolest person I knew. She still is. I love her to bits and think she is a wonderful sister and friend.
I have to say… I was really spoiled. Oddly, my sister was not. I think in the long run though, she was far more prepared for life than I because of that. I really respect what she has done and still does.