Easy question
It's even easier to answer when you try to fly airplane. I fly gliders myself though I have CPL but no job...
When you fly in turbulent air you want bigger wing loading, smaller coefficient of lift and better controllability.
Flaps will increase coefficient of lift and wing area so it's opposite what you want. So the airplane will feel any gust and will be even more difficult to control. So that's why in gliders we land with landing flaps in normal days and +2 in windy days. Also at the beginning of the tow we use -1(yes gliders have negative flaps) so you don't hit ground with wing tip which is a foot from the ground and wingspan is almost like on 737...
Also on turbulent days I prefer to fly with water ballast so I don't get sea-sick. Water ballast increase wing loading so glider is not going up and down in the smallest updrafts.
I hope my answer explains the question