Not yet. Though in a year she'll finish her degree and probably be taking home more per month after tax but only because she will get money for using the car, fuel etc. With the overtime we do I'm still ahead by about 5k a year.
Couldn't care less though. If she got a job on 60k and that meant I didn't need to work it wouldnt bother me in the slightest. I'd love to be a stay at home dad (when the time comes). I love my job too.
I think its a little different when the couple earn wildly different amounts such as yourselves. If you operated on "what I earn is mine" then you would have no money for yourself which obviously isn't fair since you are looking after the home/sprogs. If the couple are both earning similar wages though then I think it's less of an issue.
We earn fairly similar amounts unless I'm pulling overtime. Big stuff tends to come out of my account (new appliance, bathroom etc) because the overtime does make a difference. But if we are buying stuff for ourselves it comes out of our wage packet, not each others. If I want a new PC then I pay for it. I wouldn't expect her to pay for something she doesn't use and which is a non essential toy. Same as she doesn't expect me to pay for makeup and clothes and stuff.
My mum and dad are like yourself. My dad earns the money and my mum stayed at home and looked after us. So if she wanted something it just came out of the joint account because it's the only fair way of doing it when one person is staying at home.