Normality in some countries means little when it happens somewhere it’s unexpected and people aren’t used to it. Not only is acclimatization a thing, meaning that people who genuinely aren’t used to these temperatures suffer more from them, it’s also relevant how the local culture handles high temperatures.
Where it’s normally very hot or very cold, infrastructure, daily routine and other culturally influenced elements provide for relief in some form. Texas suffered immensely under a cold period that other places in the world would consider utterly unremarkable, simply because it is utterly beyond what had been anticipated.
Telling people in those situations that something isn’t that hot/cold is a bit callous.
We don’t know where OP’s father lives so it’s kinda hard to think of 34° as anything particularly remarkable without any context. It’s 41° where I am right now.
Well, much of the world does live in areas where 34 degrees Celsius are genuinely problematic and where homes are not suited to providing decent living conditions.
The fact that you don’t immediately consider that temperature a problem given your personal circumstances doesn’t mean that you should assume that it’s not a problem for them. Your comment made it seem like you were trying to make light of it.
Where I live, 34 degrees is well past the point where we’d get major national emergency warnings from the government warning of the danger that the current heat poses. I’m curious how people in your area deal with 41 degrees though, that sounds brutal to me personally. I assume it’d at least be a low humidity heat?