Walking in heels has never been a problem for me,It was probably only thing that came naturally to me. If your wife suggested you try walking in heels,you could do it easily and suggest to her in a jokey way that "walking in these things are easy,what ru moaning about" maybe she will try a bra on you,all the while telling you that they are horrible to wear lol
Funilly enough my wife ended up in casualty after falling and breaking her leg on her works night out when wearing 4inch heels,needless to say the offending pair of shoes ended up in the garbage