In my school time (90th) we had no any food in cafeteria except bulochki))) My mom packed lunch for me and my brother during 10 years of school too((((( It was not convenient( I hated when my bag smelled like sandwich or eggs((( In the same time we were so skinny. To be fat was not typical and sometimes was shame. I think now children in Ukraine have better situation, they have cafeteria which is offering such kind of food you shown. But I'm sure that they use spending money for snacks. They can buy it in any market or lar'ok and nobody can't forbid or control them(( You are right, there are a lot of fat kids in Ukraine. Parents have no time too control kids.
It's strange to see skinny moms with fat kids(