perhaps you'd like to name these schools with their 'old and dying' PA28s, 152s and 172s and when they have been grounded because of 'climatic' conditions.
Three months ago you posted a message on PPRuNE telling someone that you understand that Fujairah Aviation's diamond aircraft "
rarely fly for two months during summer as they struggle with the temperatures."
I can also confirm that QAC have also had no-fly weeks during the summer months due to soaring temperatures. If I'm not mistaken, the PA28s climatic restriction is posted as ISA+30, which would equate to 45°C. Temperatures can easily exceed this during the summer months.
As for aging fleet, it's no secret that the operational performace of aircraft slowly deteriorate over their life span. Quite a few FTOs in the Middle East have aircraft that were built back in the early 70s making them 35+ years old.
Cheerio.