It's really a case of how long is a piece of string.
Firstly, the regulations. From memory, the requirement stipulated by the CAA for a JAA-PPL is a minimum of 45hrs total time which must include a minimum of 25(?)hrs dual time, 10hrs solo of which 5hrs must be solo navigation time. On top of that, obviously you've got your ground exams and the RT licence to complete, along with the skills test.
Personally, it took me 64hrs to bag my PPL (mainly because of the switching of schools and aircraft type) and went solo after 13hrs. I really wouldn't worry about how long it takes to get to certain points - taking longer doesn't mean you are necessarily a bad pilot. For instance, your first solo will only happen when your instructor feels you are able to on the actual day and if conditions allow. Even if you're the best pilot in the world, you could fly your first 5-7hrs without fault, but find that the day that you thought you may bag your solo, you have a stinker. It happens to us all. Combine that with weather restrictions and it can drag out a bit, but you really shouldn't worry.
The most important thing I can stress is enjoy it. If you want to take your flying further, then I think enjoying your PPL is a must. During your PPL you'll learn the basics that will set you up for the rest of a future career and there is no better way to do that than being chilled out, calm and happy in what you are doing.
Finally, the best of luck
Bluesky