That's a wonderful suggestion until you take into account councils deciding that it's better to close village schools and centralise.
Then the next thing will be we'll just plonk the next school in that disused industrial estate, who cares how the kids get there, not our problem.
In Scotland (im guessing England is similar) Legally councils need to provide transport at 2miles for primary and 3miles for secondary.
Most councils operate 1mile and 2miles, except they are trying to push back to the legal requirements, except they are coming up against issues with 'safe walking routes' nobody wants their kids walking through dark allys or dirt paths. One council suggested secondary children should be accompanied if the parents deemed the walking route unsafe - who has time for that? Then they'll moan about the increase use of vehicles out side schools.