My son keeps asking when he can ride his bike to school, but I don't trust the plastic delineators on the busy road to keep him in the correct spot. Milwaukee recently added a few jersey barriers to the road, which is a great start, but still not quite enough for me to feel comfortable with him riding there.
But! We recently had a lot of snow so I've been keeping an eye on the back path for when conditions might be correct for him to ride... and today was the day where a freshly cleared path with snowbank protection meant he got his wish!