>>82016200here's reasons you typically hear:
- it's not that hot for most of the year, you would maybe use it for 2 weeks every year, unless you're further south
- there's less new property development than in the US and retrofitting AC is a pain
- energy isn't as cheap
- people are pedantic about fresh air and AC'ed air isn't fresh
you decide if its cope or not (it partially is)
Actually in recent years its become somewhat trendy to get heat pumps in germany, which are just AC that you run in reverse, as a more efficient means of heating,
so there's an uptick in private households getting AC units, but its still just 3% vs the US's 90%.