Earlier quoted context omitted.
> young, no kids, etc There is your major reason for that survey result. Companies with median-older workforces will see more enthusiasm for remote work.
I read it the other way. Only people who are young with no distractions at home, favor working at home. People who usually have family members at home, get too distracted compared to a office environment, to prefer working at home.
Having a family brings with it some other major concerns. You will want a larger home, a good school district, a safe neighborhood, and a short commute. A childless person who lives in an apartment in the city and doesn't think twice about getting home at 7 is likely to value the time in the office much differently than a parent trying to make brutally expensive house, a miserable commute, and family time work.
As others have touched on, single people might really enjoy the atmosphere of their office space as an escape from small apartments.