It’s a weird one
We don’t have a big family so DH and I have always wanted at least two children, so they have each other and also for the wider connections in future like them having aunties, uncles, cousins, nieces and nephews.
I am a little apprehensive as my elder sister was and still is a bully towards me, not wanting to diagnose her but fits the bill for a cluster B disorder with lots of narcissistic and unstable traits. I limit contact but find it hard to understand why she is this way. We are chalk and cheese. She was an only child for many years before I came along and my parents indulged her, well both of us really, possibly this was the cause but she is very entitled and generally unpleasant.
I am worried of creating the same dynamic again. On one hand I am aware of it and have sought professional help to develop strategies against it, but my parents were generally loving and wonderful so it worries me that no matter what you do you could still create a dynamic where one of your kids isn’t nice and hates the other. Surely easier to avoid this if you just have the one.