But note that the typical home has more space per person now.
70m² is a lot more for the modern family structure of two adults, 1-4 kids, and maybe a pet than it is for the traditional family of the old days where there’d be the man of the house, his wife or possibly multiple wifes, their kids (note that they would have way more kids than nowadays because of the lack of contraception and very high infant mortality that led to having to make a lot of kids since only about half of them would make it to adulthood), maybe kids from previous marriages, miscellanous relatives and possibly their families, servants (for example, IIRC in ancient Athens the average family had 4 slaves or so), and domestic animals, as it was common for urban dwellers to still have some animals like a few chickens and a goat or something, and pets of course.
But note that the typical home has more space per person now.
70m² is a lot more for the modern family structure of two adults, 1-4 kids, and maybe a pet than it is for the traditional family of the old days where there’d be the man of the house, his wife or possibly multiple wifes, their kids (note that they would have way more kids than nowadays because of the lack of contraception and very high infant mortality that led to having to make a lot of kids since only about half of them would make it to adulthood), maybe kids from previous marriages, miscellanous relatives and possibly their families, servants (for example, IIRC in ancient Athens the average family had 4 slaves or so), and domestic animals, as it was common for urban dwellers to still have some animals like a few chickens and a goat or something, and pets of course.