Bookie - exactly.
Without meaning to be pedantic I would only quibble with the word "easy". I know what you mean but it may send the wrong message.
The key is exactly as you write - easy to do from the standpoint of schooling being supplied at a point convenient to the average PPL who has a day job and four weeks holiday a year. Inevitably a PPL IR is not "easy" and it shouldn't be - but the training should be totally relevant with as much emphasis as possible on practical training and much less emphasis on unnecessary and bloated theory the majority of which is simply irrelevant to the needs of a PPL IR holder.