[JKCalhoun]

Biking across the country is a thing though. You'll meet people in the small towns along the way. I've only done a few well-established routes (Katy trail, for example) but I have, and full of vicarity, watched many YouTubers crossing the U.S. by bicyle.

[jibal]

Too much empty space. I spent six weeks doing a solo ride in France -- Versailles, Chartres, Loire Valley rivers and castles, eastern Brittany, St. Malo, Cherbourg, St. Mont Michel, Honfleur, D-Day beaches, Bayoux, Chantilly, Paris (where I caught the Tour de France finishing at the Champs-Elysées) ... amazing experience.