The way the PPL syllabus is taught, students are encouraged to land a third of the way into the runway, using a powered approach.
It doesn't take the application of much imagination to understand how a slight loss of airspeed control (say plus 5-10kts) can extend the touchdown point and result in long landings.
This won't be an issue at longer runways (say 1000m plus), but could effectively reduce a 600m field to 300m LDA, which is getting marginal in many light singles.
I learned at a 1600m field and did not really control the touchdown point of my landings until I moved to a 700m field and a good instructor taught me how to approach a little steeper, with less power and to aim for an early touchdown point. I have been grateful to her on many subsequent occasions.
There is an issue for recreational PPLs in that post GFT, there is no formal continuous development path and what is very a safe doctrine at student level can then become a constraint as the fledging pilot wishes to visit more challenging fields.
I approach most landings as if they are at short fields (unless runway occupancy is an issue) and find that this develops healthy skill/confidence levels and maintains currency.