Actually yes they do. About every 3 years. Of course they don't go inside of anything.
If I was to go through the work of putting in a french drain, I'd put in a tank and an appropriate leaching field. It's really not that hard to do when you have an excavator, already did one over at the barns, permits and all. Just have to map out enough room to frame up a small bathroom on that side of the building. I don't see it happening soon, but yes, I have thought through what it would take. Cheaper than the overhead bridge crane