So different here - US.
I paid $450 for each child, flat rate, to learn to drive. That was a 35 hour course in the classroom, theory exam, and 10 hours of lessons.
After that the expectation is that parents will supervise the next 60+ hours of driving, including freeway.
I then paid something like $35 for each child to have one pre-test lesson where they drive around the most likely test routes and the instructor goes through all the things they should/shouldn't do to pass.
My two oldest then passed their test, and were driving all our cars straight away.
Car insurance covers all cars and all drivers in the house. It went up $200 in total for the year when DD1 passed (got a discount because she was at boarding school), and $400 total for the year when DD2 passed (got a discount because has good high school grades).
We have 3 cars all less than 3 years old, and DD age 16 can drive any of them, and can also drive any of her friends' cars. The only thing she can't do is rent a car till she's 21. One of ours is a huge pick-up truck - she has driven it but she prefers the others, as do I.
DS turns 15 early next year and will start driving lessons straight away. It would be funny if he didn't pass first time after both of the girls did...