Here is the end of the platform at that well known leafy suburban station - beloved of Midland Railway Directors (and more recently senior executives of the Derby rail scene) - namely Duffield.
I see that some lateral thinkers at NR (possibly in response to Eye's platform-end fencing jibes) have decided to use this freely available vegetation to prevent passenger egress from the platform ends.
I am surprised that the "soi disant" so called veteran railway observer has not mentioned this!