As a non-PPL holder, one reason I never committed to going for my licence in the first place is that I was advised to sit down and think long and hard about what I would be doing with it a year, then two years+ after qualifying.
This was a way of getting me to think about the longer term elements rather than go for the "rush of blood" approach and based on long analysis, I decided not to try for it. This obviously leaves me with the feeling of never knowing for certain whether I would have qualified for a PPL, but I'd rather that than spend the money and put in the effort through the training just to find that I didn't utilise it fully.