@Gabrielle466
As far as I know, 14h00 check-in and 10h00 check-out (year-round) are the norm in our country, so it seems you're well aligned.
I think things like daylight hours and local expectations factor in - It looks like many hosts in the northern hemisphere use 16h00 and 11h00, giving them an extra hour.
For me, the 10h00 check-out usually runs fairly smoothly, as you also said. But often guests want to arrive before 14h00 (which is strange, as our standard time is already earlier than most other countries?). It may be because we don't have a network of luggage drop facilities. I agree with you - it's hard to get everything done between 10h00 and 14h00.
The problem is that guests assess whether the place was clean and well prepared, regardless of whether they checked in early.