Only Child Struggles

Samantha

It took me years to finally get pregnant and I'm forever grateful for it. It's all I have ever wanted. I have always been perfectly fine with only having one. Here lately I have been wondering if it's selfish for me to only have one and make them an only child. Every one says that one day when they're older siblings are all each other have. What's everyone's opinions on that and is there anyone that is an only child and how do you feel about it?