Honestly, I will never wrap my head around how people can happily bring infants on any flight where you can expect people to try and sleep, it’s incredibly lucky if they don’t spend some of it screaming their heads off—I would be mortified if my choices were preventing hundreds of people from sleeping. But I’m not going to rant too hard about that.
Why on earth hasn’t any airline started marketing adult-only flights?
It seems like a complete no brainer to me, I would choose it every time and pay extra for it.
Disclaimer: I may or may not be on a 36h day with only an hour of sleep right now
Various adults-only flights (and I think even an airline, but I might be mistaken) did exist. You could argue about 9/11 and later financial troubles factoring into their demise, but they’re usually more expensive and less frequent/convenient and thus are not popular.
Second, if you can afford to fly enough that this is a regular occurrence, get noise-canceling headphones.
Third, not all people who are traveling with small children are doing it because they want to: funerals, work relocation, etc. are a thing that are impractical to do via other modes of transportation. If my work and the internet were good enough, I’d love to just boat everywhere out of my current country, but that’s not going to happen (although I don’t have kids, so it wouldn’t matter for this post, I suppose).