I'm an only child, my mom had 4 brother's & sister's growing up & man the stories she has told me about. So being a Only Child is defiantly different than growing up with sibling's. My cousin's did live across the dirt road from me as I grew up. But play with your cousin's is just not the same as having a brother or sister.
Of course yes as an only child my parents where able to give me more than if they would of had 2 kids or more. But I don't think they spoiled me either. Growing up as a only child I spent a lot of time outside playing with the dog's, cat's, swimming or in the woods. There where so many times that I said I wish I wasn't an Only Child!
Getting older I even said that when I have a child of my own I will have two so that I don't have an only child either. Of course that was before I meet my husband that has 8 brother's & sister's. He said even with that many around he still felt like a only child & only wanted one child. After much talking about it I decided maybe me growing up as an Only Child wasn't so bad after all.
So after having my son, which wasn't a great pregnancy. I know women that have been worse off than I was, but it wasn't something I really wanted to do again. Don't get me wrong the giving birth part was easy, the 9 months leading up to that point. That was what was not so pleasant. I decided that my new son would have to follow in my foot steps & become an Only Child also.
Of course he is spoiled in his own way's, nothing like mine where. But he does love being a Only Child, I've never heard him once wish for a brother or sister. I've even talked to him about it, he's like no way I'm good with being an Only Child.