Will all our pavement be soft one day or do they do this because the tiles keep breaking and the soft material is more resistant to movement from roots and general damage etc.?
Cheers, have a good one.
Edit: found out they might absorb water too which is cool
It probably depends on where you are talking about. Sometimes it is a temporary section when the path has been removed to access pipes etc. underneath. They can easily resurface with asphalt to create a safe walking surface as a temporary measure until the concrete can be replaced.