Perhaps we are looking at this the wrong way round. Perhaps we should look at who continues to fly. The LAA has a very large (by UK standards) membership, and the pilot element is relatively static, very low churn. Low cost, low hassle, fun flying which has no practical use, but lots of camaraderie and enjoyment.
When flying is allowed from unlicensed strips by enthusiast instructors perhaps the average PPL will find it easy transition. Most of the new PPL’s I come into contact with have no clue about this side of aviation because almost all LAA/BMAA style flying has abandoned the licensed airfields.
Rod1