I don't think I agree that this is common language.
The simple form of relationship is "our children" or "my parents", clarifying the age bracket isn't normally used. I say this as someone with 2 children, one is 19.
In some contexts I may describe my parents as "my elderly parents", but only if the age context is relevant.
You introduced your children into the discussion using the bare noun "kids" rather than a more specific noun phrase like "young kids" or "teenage kids." By omitting any age-related adjective, you focused on the essential fact of having children without specifying their age. This choice demonstrates common linguistic practice, we typically only mention the age range of relatives when it's directly relevant to the topic at hand. Your language use here is a nice example of this principle in action, effectively supporting my argument.
One might argue that by not providing the age context as an adjective, you disrespected your children. However, this position seems to assume that age-specific descriptors are always necessary, which I disagree with. In fact, your choice to use the bare noun appears to show a nuanced understanding of when such specificity is needed and when it's superfluous.
EDIT: I also see it's not the first time you've, according to your definition, been arrogant enough to not provide the age range of your children: https://news.ycombinator.com/item?id=41213069
I don't think I agree that this is common language.
The simple form of relationship is "our children" or "my parents", clarifying the age bracket isn't normally used. I say this as someone with 2 children, one is 19.
In some contexts I may describe my parents as "my elderly parents", but only if the age context is relevant.