Was this in controlled airpspace?
That old chestnut, again
A PPL holder who has learnt
exactly the PPL syllabus will not even know what an "ILS" is. He will not have heard of any of these, either:
"AIP"
"Jeppesen"
"Aerad"
There is no easy solution to this.
Well, you could have controlled airspace, but then you need ATC to run it, which will cost around £600,000/year in ATC salaries (and overheads) just for daytime cover. To paraphrase Dirty Harry, "do you think you really want this"?