Why greater connectivity for suburban workers?

SF Business Times July 31, 2015, “Americans under 30 are 2.3 times more likely to use public transit compared to those between ages 30 to 60, and 7.2 times more likely than Americans over 60, according to a 2014 study from TransitCenter.” What long-range impact will this have on future suburban office development, not easily accessible to public transportation? How does this relate to new employee hiring and employee retention? What happens when these ‘under 30’ become decision-makers?