Just to add my 2 cents, it's easier and not as scary as it sounds so just go for it.
You can get a learner's license at 15 here although I didn't start until I was 17 as I felt too scared at 15, and I still feel that's too young to start driving.
Anyway parents paid for loads of lessons which was good and I quickly discovered it wasn't as scary as I'd imagined. Did enough lessons and practice to feel confident I could pass the driving test, then did it and passed with no trouble.
The key really is making sure you are confident enough and good enough through practice and lessons etc so that you can pass the test. Don't go for it as soon as you are eligible, do it when you are able to pass it.
Slightly different system here in that you have to have a 'learner's license' (can only drive with someone who has had a full license for 2 years in the passanger seat) for 6 months before doing a test for a 'restricted license' (can drive alone, but if taking passengers there must be someone as above in the passanger seat, and cannot drive at all after 10pm and before 6am except in special circumstances - ie, you can get a special permit if you have to drive to work night shifts etc). Have to be on this for 18 months (or can cut down to 12 or less by doing various courses) before another test for the 'full license.'
I know loads of people who went for the restricted as soon as the 6 months was up just because they could, but failed because they were not really ready for it, my brother being 1 such person. One of my best friends was learning at the same time as me and made a point of going for the test before me to beat me. However as he had only done a few lessons with his parents in their big 8 seater people mover, he wasn't properly ready and failed. I waited several months longer than necessary but did the test when I felt ready and passed with no issue, I also organised a final lesson with my teacher to go through the exact test and route so I knew what was ahead.
So my advice would be to just go for it and start learning, but take your time and don't feel pressured to go for the next level before you are ready "just because you can." And try to learn in a sensible car if possible.