Check your insurance policy but yes 6 weeks is the norm. Basically you have had major abdominal surgery and if you are forced to brake suddenly in an emergency you may not have the strength to do so or you may rupture your stitches and bleed.

I didn't drive for 6 weeks until I had my Ob check up and got the all clear but I am in a position where I can walk or take public transport pretty much everywhere. In the grand scheme of things 6 weeks isn't a long time provided you are able to get all of your necessities. If you are very isolated then obviously you will need to come up with an alternative.