As the others have said, to me it seems to be the opposite. I went to Switzerland recently and was shocked at how kid friendly it was (very walkable, kid section in trains, parks with fun toys instead of shitty plastic statues).

I also saw a whole lot of families and children.

As I'm getting older and looking in the coming years at having children, the value of a tight, walkable community has risen exponentially to me.

For what it's worth, Switzerland's fertility rate (1.59 births per woman) is still well below the replacement rate, and has been for decades.

I think "make society more child-friendly" is a good idea, but one that doesn't seem to have increased fertility that much. To me it seems that educated people living comfortable lives with access to birth control simply don't want to have that many children. If you look at the country stats, the most proven way to increase fertility is to take away education, women's rights, or birth control. And imo, the western world should adapt to low birth rates, instead of trying to prop them up.