Tiny houses needn’t be totally devoid of common sense rules. Code enforcement is a must in regard to plumbing, electrical, sleeping lofts atop load-bearing walls, etc.
To me, a “tiny” house is anything less than 800 sq. ft. and can be smart for retirees or loners on fixed incomes.
OTOH these young couples who think a marriage can survive in 150 sq. ft. with no storage space or privacy are truly nuts, IMO.
Retirees? Sorry, this retired person feels no desire to climb into bed after traveling alternative stairs. Believe the floor would be much safer than a high bed - less of a fall. If one had no aversion to heights or claustrophobia, then it might be considered. Tiny houses are like any other. Good points, and bad.
OMGoodness, I’ll say. That’s just insane. That’s 3rd world conditions. And Lord help the couples like me who Capital-N-Need extra space for medical equipment; 600 square feet is borderline cramped nevermind 150.