The operative phrase is “universal design,” and the idea is to cease and desist creating public infrastructure that privileges one particular group, whether it’s car drivers, the able-bodied or those with paycheques, and start envisioning people with parallel but not identical mobility and sociability needs: children, teens, seniors, new immigrants, those on low incomes, parents, those with sports injuries or with physical and mental limitations, and those who care for any of the above.