This is practically a troll.
Try as we do, we can't escape the reality that girls are not only physically different than boys, but as an aggregate group do lean towards certain behaviours and interests.
Some of it may be learned, and there are of course outliers, but you see similar behaviour tied to gender across very different and sometimes geographically isolated cultures. In the least technical terms, there really are "girl things" and "guy things". This becomes rediculously obvious to anyone who has spent any time around little kids.
I'm all for removing artificial barriers, but once they are down we're gonna have to accept that maybe girls really do want to be princesses and maybe guys really do want to be monster trucks (not drive, be damnit, BE!)
I really doubt this guys daughter is deciding to be a princess because she feels society has limited her career choices. She wants to be a princess because that's the kind of thing little girls lean towards. If she wants to play with lego, by all means encourage that shit, but if she just wants to dress up and play with doll, let her play with her dolls and leave her alone!
This is clearly true. I mean, in islamic societies, women just naturally want to cover every part of their body except their eyes, and are averse to driving. They want to be stoned for adultery.
Women in America, before those unnatural suffragettes, didn't really want to vote. They don't want equal pay. They want to be housewives, and live in suburban homes.
My point is that we've just come out from under many millennium of misogyny. How can you say with assurance WHAT women want? Or, for that matter, what men want? The political forces have skewed our desires so fully, and informed our prejudices so entirely that women themselves don't have a gut feel for what is 'natural' for women.
Your typical 4 year old has thousands of hours of TV watching under their belt. They have watched their parents reactions to their actions. They know what you want, and what society expects.