Speaking of holidays:
1) The instagrammers who clog up certain scenic spots taking ages to get their perfect shot, when anybody else is taking a couple of quick snaps and then moving on.
2) The trend of families with small children (I'm talking like under 5) in which every family member has a full size carry-on. I'm sorry but a 5 year old does not need a personalized carry-on so their parents can avoid checked luggage fees, while slowing the boarding time for everyone else
Similarly (and I'm not sure if this is a new thing or the pandemic has opened my eyes to it), but the amount of idiots on holiday who seem to be in their own little bubble without any consideration for their surroundings or others. It's as if the mindset is I'm going to do whatever the fuck I want, how I want, when I want