When I'm out cycling locally I look around for places for possible wild camping - not because I want to camp but out of interest and I see nowhere. My local rides are all rural Norfolk, mostly single track country lanes but virtually nowhere not obvious to the many dog walkers or in view of a "farmhouse" (often a modern brick bungalow).
I've never wild camped, mainly because when i do cycle tour, after setting-up camp I start drinking coffee and I do seem to need a tap (despite carrying nearly 2L water). So for me it's water that is a limiting factor.
Ian