My only Dd is an adult now, so I guess I’ve been through all the stages.
Im from a family of four so I also know what it’s like on the other side.
There are so many advantages to an only. I agree with the whole post of @Bestcatmum. The dynamics between parents and child/ren is so, so much easier with one. Everything you do and everywhere you go can be tailored to your child’s interests, it’s trivial stuff eg but you won’t have to hang around with a bored toddler while the older sibling is doing their thing.
Every time your child has a play date you will have child free time. When you are hosting another child who is a friend, probably same age, same sex, same interests they will very rarely have arguments.
You will have to go into overdrive in fostering friendships and be willing to host and offer lifts and pick ups and drops offs more than your fair share. You need to be happy to invite friends or family on holidays and high days.
When we went to the Caribbean for a family holiday with a only 15 year old, I chose a hotel that I hoped also attracted other teenagers. It did and she had a fabulous time. I don’t think we could have afforded that otherwise.
We have helped her through uni and helped her and her husband buy a house.
Youngster need all the help they can get these days to get on the housing ladder. She looks around at her peers and I know how grateful she is.
Lastly, both she and her husband are only’s, they intend to have one child.
Im divorcing now. I am pretty sure it would have happened a lot sooner if I’d had the extra stress of more children to look after as the father was so little involved with the daily grind. In many marriages it is only after you have children that the lack of effort of the partner comes to light.
Im sorry I’ve waffled on so much, but for the sake of the planet I think more people should settle for one. Yeah, I know, if I care that much about future generations I shouldn’t have had even one.