DH & I have a 9 year old boy & a 7 year old girl, he's their step-dad. I've seen people make a comment that seems like they're trying to figure out the details. He usually just sort of lets it hang there for a second until the person starts to feel awkward and then completely changes the topic.
How does your partner feel about it? I think I'm actually more sensitive about it than DH. If he's not dad then what is he? The flavour of the week? And then what am I? And they seem to regard the kids with pity. It's insulting to all of us when someone discredits/devalues one of our roles in our family.
If it's just strangers/acquaintances with this attitude then try not to let it bother you too much. My family has seen the positive affect DH has had on the kids and how happy he's made me, and they hold him in the highest regard. The kids view him practically as a hero. Whose opinions are more important?
A nice dismissive/gives no information answer might be "Ahh, kids keep you young." Hopefully it won't be often that someone gets really nosy and pushes beyond that but if they do I think asking them why they want to know/why it's relevant would be appropriate.
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