AskUSA

I can think of one: food.

Not what you'd prefer to wear, but what you have to:-).

Maybe a different religion, or especially political beliefs seems to be a big deal-breaker. Do you still find it worthwhile to keep them in your life?

I've done well over an hour before (one way), but it definitely takes planning so not anywhere close to casual. At that point, perhaps other transportation may be used to return. And/or even if a daily/weekly occurrence, it takes discipline to do things like leave on time and stay informed throughout the day to handle weather events, plus wearing certain clothing to handle sweat and sun and rain etc. Biking is definitely preferable to walking for that level of distance/time, though I've done both.