I was 16 yrs old and just graduated from high school when I started driving lessons. It was just a 10 day driving lesson and started driving since then. I just acquired my non-professional driver's license when I was 18 yrs old.
I never took any driving lesson from any institute rather i learned driving by my own and it was back in 1995 when i started to drive even when i was not allowed to do so legally i think i was 14 at that time
I started driving a motorbike at 16 years but in the UK we are not allowed to drive a car until we are 17, which is what I did. I got a full driving license when I was 18. Driving laws are different in each country it seems.