It's always the same way on here if anyone mentions this sort of thing.
Lots of boy parents saying how they didn't want girls because <negative stereotypes>
People saying there's no difference (but not objecting to the above)
People saying how dreadful anyone could be who has a preference (but not objecting to the boy parent posts)
I have both. They're now adults.
I have two girls who are very different, and a ds who is different again.
They're all mathematical and enjoy robotics and engineering.
They all act and love the theatre world - two prefer tech (one boy one girl) and the other wants to be on stage.
They all did ballet, musical theatre, acting and tennis as children.
As adults:
Ballet: one dd still does
Musical theatre: both dd still do
Acting: One dd, ds still does
Tennis: ds still does
But there are differences:
Ds loved balls, especially football. No one else (even dh) likes it - he loved it before he came into contact with anyone else who likes it - none of the family is into football in the way he is.
Even as a tiny baby if I put a tennis ball dangling from the baby gym he would get really excited and focus on that. The girls didn't like the baby gym the way he did, but they ignored the tennis ball in favour of the soft toys.
Dd2 loved her dolls. She would spend bedtime undressing them and putting them to bed, feeding them in the morning etc. Ds, when given a buggy and doll, decided it was a digger and the doll its driver and spent the afternoon digging up the garden and using the buggy as a battering ram.
Dd1 & 2 loved craft - in fact dd2 still does.
Ds couldn't stand it except for a brief phase of Airfix models. In fact he disliked it so much, he used to go to a different class in infant school to avoid it.
Books are another thing that they were different. I could always tell if a book was left lying around whose it was.
dd1: Adventure stories
Dd2: 1950s and earlier school stories, very much the "Girls' Own" set.
Ds: Ideally factual books, although fiction that had some facts (or set in history) was acceptable.
I don't think we are doing ourselves or our children any favours by saying there is no difference at all. On average there are differences, personality may mean the differences on an individual base aren't there. Surely that's fine to admit?
And the majority of people who have a preference are simply saying that it's a preference. We make judgements and have preferences on all sorts of things, that's fine isn't it?
What's wrong is when someone allows their preference take over - I knew someone who had a c-section (through necessity) when their preference was not to have one. Even when the child was 7 or 8 (last time I saw them) if they met a new person you could guarantee within 5 minutes they'd be telling them that they had to have a c-section and that was why they'd never bonded with their dc.
It was not wrong to have a preference; what was wrong was how it had coloured their relationship with their dc.
The same is true of preferring a boy/girl. There is nothing wrong with having that, but if it colours their relationship once the baby is born then it becomes wrong for that reason.
But it's very rare to meet someone who doesn't find that when their baby is there, they love them and are glad that they have that baby and they don't mind any more.