2 adults and 2 children on 16m2 with 2 working salaries. It’s not about changing standards, it’s about families with children needing enough room to have beds for everyone and hopefully still fitting a small sofa. Back in the day, that same family would be able to have twice as big a home with one one working parent, but that was before the whole market started playing chicken to see who could put themselves most in debt to carve out a little place to live.