A low-sweat bike?

He needs something heavy and slow like a raleigh superbe. Comfy geometry, upright riding style, rod brakes so you daren't go too fast because you know your stopping distance is huuuuuge, and a wicker basket for things to bounce out of if you go too quickly.

This plus a thousand time.

cheap old dutch bike that flex more than a West Midlander's pregnant teenager would do the job.