Yes, household income is important, but remember what the household data infers.

You say household income is stagnant and people think "wages haven't increased", when in fact wages have increased, it's just that there are fewer wage earners per household.

That's an important distinction that points to very different solutions.

I agree it is important to know both data points.

My household has one income and 5 people. Many of my colleagues' households have one income and one person, or 2 households and 2 incomes. However, we're far above average household and per-capita income, even for the Bay Area.

I think a good set of metrics to measure what household income is trying to measure would be income-per-employee, incomes-per-household, and household size.

There is a huge increase in how much unpaid labor a household can perform if only one member is doing paid labor.