Mr Scotty, I am pleased that you are so informed about my driving habits.
Firstly, I am most fortunate not to live in the northern wilds where driving is more akin to paddling due to the persistent stormy weather during your summers and skiing in blizzards during your winters. I am sure your I9" wheels will go down a treat. You'll be able to ski on them right through the year with or without 4WD. How fortunate.
Secondly, it is a fact that the 'fastest' tyres on a performance Golf are 17" ones, as proved on the track by a couple of magazines. With these you might even be able to 'drive' in your inclement weather.
Thirdly, I don't do short journeys in my car. I prefer walking for purposes of fitness and keeping slim and agile much like a car with 17" or 18" wheels. You should try it though this might not always be possible in wild, rural conditions.
Lastly, I hope you enjoy your 19" as much as I enjoy my 18".
I see from the weather news that the northern wastes will, wait for it, have lots of rain. Do you possess a boat?