Originally Posted by mel2012

As a general rule, they're not riding solo in full darkness, though we have done that in low-traffic areas or when we're on a group ride with our local Kidical Mass group.

More often, they're riding at dusk/dark either: (1) on their own bikes attached to my/my husband's bike on a FollowMe tandem; or (2) on my cargo bike. In either scenario, they're at the far rear, so yes, they do need reflective gear in addition to lights.