Not my opinion! So less of an AIBU and more 'are they being unreasonable.
I recently had my first baby, he's lovely. My partner and I said we'd just have one, because:
- We hope to have more time/resources to devote to him.
- State of the world (we did discuss not having any due to this - whole other thread for that argument!
- Hopefully less stress?!
However since he's been born I find myself thinking I could do this again (hormones maybe, he's only 6 months!). I wonder about him being lonely, or what will happen when his dad and I die. I wasn't close to my sister growing up but we are very close now and I'm so glad I have her. I was discussing this with her yesterday and she agrees, but went on to say she thinks it is selfish to choose to have only one child. She has none of her own yet but wants two.
I have a bit of time to decide, I'm early 30s and partner is mid 30s - although he reckons he will be too old for another in a few years time. I'm not sure what to think. There's no guarantee siblings would even like one another or get along as adults - I know plenty who don't. But I also know of some who are best of friends.
Of course there are very sensitive reasons why people may choose to stick with one - high risk pregnancies for instance. And of course there is secondary infertility. But in the case where the parents could provide for another child and would be happy with another - is it selfish not to for the sake of their first child?