Ukraine--Bread basket of the world, btw...
Anyone that cannot cook from scratch, or has picky eaters in the bunch, or relies on boxed or heavily processed foods is going to be in for a shock when they cannot find their box of chicken nuggets or other heavy-on-the-white-flour "convenience foods" in a short time...
Carb withdrawal for some people is going to be absolutely miserable if they have never fasted (or are lightweights at it), are used to snacking, or do not know what actual hunger signals are versus "carb cravings."
And any kids brought up on boxed foods are going to be CRANKY when they go through withdrawals...