Do only children, like myself, desire to have multiple children?

Life till high school was not much difficult for me being a single child, I often felt I had better opportunities then the ones with siblings. But this thinking drastically changed when I went to college, I don’t have many friends, I find my classmates quite selfish and I realised that even though my relationship with my parents is very good, there are still something’s that can’t be shared with them.

At times, I feel lonely, I wish I had siblings, it could have been so much fun, running errands with them, and I kind of want to have at least 3 children because I don’t want my children to miss some of the great childhood memories that can be made with siblings.

What are your thoughts?