I read through a few topics about the driving lessons and people said that it is available through the “relax alone” option. Well, when I go through all the options … I don’t see driving lessons. Do you need a certain amount of money or something in order to do it?? 
It’s been a long time since I’ve played, but I think the lessons are 25 pounds and you may (I’m not sure) need to actually own a car.
In my version you have to take driving as a class once or twice a week and it costs $50.00, so even if you WANT to take the lessons you have to wait for the day to come.
As soon as i start a new game the driving lessons option is available and you don’t need to own a car.