@LolaSmiles I'm not sure you really understand the whole issue of gender disappointment. It's not about having a boy or girl to mould into a certain stereotype. There's a common misconception on here that wanting a boy must mean wanting a stereotypical 'boys boy' playing with 'boys' toys and doing 'boys' activities and wanting a girl must mean wanting a little princess playing with 'girls' toys and doing 'girls' things. That is not the case.
As much as some people would love to believe otherwise, boys and girls are not the same. Aside from the obvious physical differences, there are differences mentally and emotionally too. The way they think and respond, the way they learn and process information, their reactions, their relationships with others. These differences should be nurtured and encouraged not denied and ignored. We should be embracing the differences while still teaching children they can achieve anything they set their mind to (and work hard for) regardless of sex, instead of making them ashamed of their gender. That can be so damaging as they grow up as they often struggle with their identity and finding their place in the world.
It's our job as parents to help them find their own identity and encourage them to be who they want to be. If that starts with dressing them in girls or boys clothes as babies and buying them stereotypically pink or blue toys then so be it, there's nothing wrong with that. The harm only comes if we fail to change and adapt as they grow and start making decisions for themselves on what they want to wear or what toys they want to play with. Denying their gender from the beginning and lumping them all together in this neutral middle ground is much more damaging. In fact, i believe it's a contributing factor in the increase in mental health issues in young people (a contributing factor - not the only factor)
If a girl wants to play with pink Lego over multi coloured unisex Lego, so what? If she wants to play with battleships and trains and they happen to be in the 'boys' aisle at the shop, so what? If never occurred to me to mind if i was playing with 'girls' toys or 'boys' toys when I was growing up and it certainly never held me back in any way.
I was a complete tomboy, living in tracksuits, building dens and playing football in the mud. I shunned anything pink and girly. Did that make me the same as my football loving brother? Absolutely not. My sister was obsessed with Barbie and dressing up. Did that make her more of a 'girl' than me? Absolutely not.
The issue with wanting a boy or a girl is more deep rooted than you give it credit for. It's more to do with a womans own childhood and the bond they share with their own parents as has been mentioned several times. A lot of women want a relationship with a daughter like the one they have with their own mother and a 'daddy's girl' relationship for their partners like they themselves have with their dad. Women dream of bonding with a daughter as they grow....maybe over puberty and wedding dress shopping and someday them having a baby of their own? Of course those things might not even happen any way but that's what they're imagining, not sitting playing with hair.
Some women didn't have that kind of relationship growing up and want a son so history doesn't repeat itself....a lot of men want a son to carry on the surname with a family of their own one day. There are all kinds of reasons.
Yes it's illogical, that's why there's a stigma attached and people are often frightened to admit how they are feeling. Once they have a child of whichever sex, most rational people realise how wonderful they are and how silly those feelings about the sex of the baby might have been and they will have a wonderful bond with them regardless. But even if they have a little boy into ballet and cooking and playing with dolls, that doesn't mean they won't secretly be hoping for a girl the next time (or vice versa).