But if I really wanted to start a flamewar, I'd suggest agricultural changes; that is eating less beef in particular and meat generally. There are reasons so many religions have diet restrictions - it's a fairly fundamental part of human identity.
These efforts targeted at changing individual behavior are distractions from actual things that economies could choose to do centrally to largely fix the problems. There is no reason we need to continue burn coal/gas to generate power, except that we think it is too expensive to make the effort to switch over. For example, Germany choosing to shut down nuclear power plants while there are still fossil power plants on their grid means they don't really believe that climate change is as big a threat to civilization as they say elsewhere.
I may be wrong, but I think larger actions like replacing power plants, etc. are far easier to do at this point.
It's one thing to do something to make yourself feel comfortable, it's another to say things to make others feel uncomfortable.
But life is often uncomfortable; sometimes you must endure a needle or a surgery in order to receive life-saving medicine. My city in South Texas hit a record heat index of 117 last year - I can assure you that that is very uncomfortable, and yet we are still in the relatively early stages of global warming; I assume that I'll need to move north at some point in my life.
But even I fear some discomforts - I cannot imagine a frank discussion with children today about the future they are staring down, and I have to imagine its one that nearly all parents will face (not that I am among them).
Nature doesn't care how much enjoyment people get from travelling the world. It just experiences the impact on the atmosphere.
Energy, industry and agriculture all improve everyone's lives, while less than 20% of the world population has taken even a single flight.
Both transport and heating each comprise more than 20%.
And telling people they shouldn't eat meat will likely result in even more backlash than telling them they shouldn't fly.
Isolating everyone to only ever see the place they were born and never travel the world seems like a big overreaction to me. Transport (and specifically aviation) is hardly the biggest offender as well. Energy, Industry, and Agriculture are 80% of emissions, we should start there.