Wayspots and Autobahn
How would you handle a Wayspot located at a "Autobahn-Rastplatz"/"highway rest area"?
Such a wayspot is likely to be accessed safely by a visitor of the Rastplatz/rest area - but you have to use a car/truck/motocycle to get there at all. In general, Rastplätze/rest areas do not have a footpath for a pedestrian to get there.
Now I take this to the extreme:
Assume there is an acceptable, hence safely accessible, wayspot in England. If you are in France, you would have to use a boat or a train to get to England since there is no bridge from France to England and the tunnel is not suited for pedestrians. Once you get to the British island, you can access said wayspot safely. But no one will doubt that this wayspot is acceptable.
Where do I draw the line regarding the requirement "safe and publicly accessible by pedestrians"?