I'm teaching DD1 (17) too. We've had our moments, mostly because she thinks she's a very good driver and I don't agree, but on the whole it's going very smoothly. She still needs experience of driving in lots of traffic, but is coming along nicely. I'm planning a couple if lessons with an instructor before her test, so she can learn the correct test techniques though.
Definitely won't be teaching DS to drive myself. He hates me telling him the correct way to do things so it would be a recipe for disaster to take him out driving in the car. Have booked him 3 young driver type lessons as a Christmas present (he isn't 17 until Nov) as I figured it would be safer if he tried driving on the disused air field that they use rather than having his 1st taste of it on the roads later in the year old fart here who learned to drive by using supermarket car parks on a Sunday in the days when supermarkets weren't allowed to open