At 50 it's affordable to almost everyone. It's a big improvement, but still incremental. At 10 (or less) it's a safe assumption for everyone. You can start bui

At 50 it's affordable to almost everyone. It's a big improvement, but still incremental. At 10 (or less) it's a safe assumption for everyone. You can start building things with zero provisions for cars, no excuses. It's a massive social shift.