Please do read what you just wrote, and consider whether the tone and much of the content is necessary.
Anyway, passenger cabins require 8,000 ft for normal operation, so it's a bit misleading to say there's no legal requirement. https://www.law.cornell.edu/cfr/text/14/25.841. (And yes, I know the difference between airworthiness and operations, still misleading). Also why I'd bet a good sum you're a PPL.
I'm not even in the US; you're barking up the wrong tree. I apologize for disclosing a relevant fact. Won't happen again. Thanks for the link to CFR25.