Here in the UK, you need to take a multiple-choice theory test and a practical driving test. The practical test takes about 40 minutes and is conducted on public roads. The pass rate for both the theory and practical test is about 50%. It's not uncommon for learners to fail the practical test several times. You're not required to have professional instruction but the vast majority of people do, because it's extremely difficult to pass the driving test without it. Most instructors recommend 30 to 40 hours of tuition before attempting the test.
Learners who are driving on a provisional license prior to passing their test must be accompanied by someone who has held a full license for at least three years. They must display an L-plate on the front and rear of the vehicle and cannot use motorways (freeways) unless they are accompanied by a licensed instructor.
It is my understanding that the British process is relatively straightforward by European standards.
https://en.wikipedia.org/wiki/Driving_licence_in_the_United_...
https://assets.publishing.service.gov.uk/government/uploads/...
