I don't know about you, but I grew up with a big family. I consider myself lucky because I always had someone to play with while growing up, no matter what age. While there are several great things that come with having such a big family, there are some downsides as well. Here are my personal feelings on having a big family:
You always have someone to play with, weather they're three or six years older, they eventually have to give in and play with you.
Every time your siblings end up in trouble, the youngest gets blamed (in my case that was me).
If you go to a small school, almost everyone knows you as "so and so's sister or brother" and your teachers may even mix up the names (happened to me plenty of times). If you're lucky, you're expected by these teachers to be just like your siblings even if your nothing like them
The good part about having them in school at the same time as you is that they will always have your back.
Having more than one sibling to go to for advice is so good because than you have a broad range if you need a second opinion.
Even when you hate each other and run to your mother to complain, you really love each other
One of the best things about a big family is that you end up with best friends who are family. I don't know what I would do with out my siblings and other relatives. They might drive me crazy, but they're my favorite type of crazy.