Growing up as an only child, what are some things you wish your parents knew or wish they did differently?

Very happy with my upbringing as it was, loneliness wasn’t a thing I experienced as I was always with friends etc. got a lot of freedom to basically do as I please but knowing help is there if needed, as opposed to being smothered and/or bossed around.

I can’t perceive any negative really that were a result of my not having siblings, as there weren’t really any major events that I disliked or longed for