Two experiences, of perhaps more practical interest to expatriates who have or care for children in Ukraine:
1. Our little girl is having a far better experience in a US school -- where nobody knows her language! -- than she did in two Ukrainian schools. The contrast could hardly be more dramatic. Some notions of education in Ukraine resemble those in the US several generations ago, and the teachers we encountered had a most unhelpful/passive attitude (not surprising, for folks who are paid around a dollar per hour).
Her American teachers, aides, principal, school nurse, social worker and so on are attentive, loving and supportive.
2. Her last dental exam in Ukraine revealed no problems. This was by a supposedly modern dentist in Kyiv. Three months later, after she had an episode of really extreme mouth pain, we rushed her to a dentist who found cavities all over her mouth, and who was so worried that she told us "you must get her to a pediatric dentist: if it's not possible tonight, then tomorrow morning" (mouth infections can spread very rapidly, and are sometimes fatal).
One of the teeth which had to be removed was more than half gone -- rotted away from the roots.
Either (a) all of that happened in 90 days ... or (b) the Ukrainian dentist was yet another bullsh!t fraud.
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We are very grateful that she now benefits from Western-grade facilities for children.
I have many fond memories from my times in Ukraine. And there's a lot of Ukrainian garbage I won't miss in the least.