I’m an only and loved it. Absolutely loved it. I’d have happily had just one Dc myself, but DH isn’t an only and wanted more.
So we had two. Interestingly, one of my friends (from adulthood) who is also an only, only ever wanted one herself, as she had been very happy as an only too. But she married someone who already had children so she has step children as well as her ‘only’. I wasn’t the only other only in my class - there was another one —but she wasn’t a nice person—.
I grew up in a village, went to the local state school, as did everyone else (no private options even if you’d wanted them). Did lots of clubs outside school (brownies/guides, dance, gymnastics) and at school (choir, orchestra, art). So spent plenty of time with other children. My parents also welcomes me having friends around a lot.
My extended family is also enormous and all lives within a ten mile radius, so lots of first and second cousins, aunts, uncles, grandparents.
I liked being an only as it was relatively quiet at home. I could do things uninterrupted. It wasn’t noisy. We would have board games night every Friday and I’d just play with my parents.
The only thing I think might have helped is if my parents had been willing for me to take a friend on holiday with us. But they never were, saying it was their holiday and they wanted to relax without the responsibility for someone else. But that’s it.
Also, as I’ve grown up (mid 40s), my parents have never put pressure on me to visit any more than I can, or do any more than I can for them. They’re older, but still in good health, so I haven’t been in a caring role or had to make decisions for them/with them. I can see that being harder as time goes on, as I live 250 miles from them now, and have nobody to share that caring role with.