Comment by kelnos

That's not how regulation works. Or at least not how it has to work.

I don't pay a flat fee for my water, electricity, or gas usage, regardless of how much I use. I pay for the gallons, kWh, and therms I actually use. (Yes, there are other fees on those bills, but my usage actually matters.)

Airline regulation doesn't have to specify standardized seat pitch, etc.