At a certain point people will revolt at that suggestion. Most people I know are not going to give up their suburban/rural acres to live in a cramped, walkable city with no space to do everything they love.

There needs to be more choices. American suburbia is on another level I know, but there is no reason you can't have a bit more density, walk-able or bicycle friendly neighbourhoods, centred around amenities and public transport.

But some people will, and the easier we make alternative modes of transportation, the more people will choose them. Want to sit in traffic all day while an LRT zips by? Nobody is stopping you.