Well, yes that's ok for you to say at 40/50 years old after you've spent the last 20 years flying all over the world and brandishing yourself as ' well travelled' and cultured. What about those of us in our early twenties like me who has been abroad four times in my whole life, not even to anywhere particularly exciting and I'm just about to finish university and was hoping to finally be able to travel a bit?
Not all of us have spent the last 20 years, or indeed 50 years, flying.
In my generation (born in the early 60s) young people travelled by train and bus. Flying was expensive then and not for the young- also we considered it not a proper adventure. Bit boring. I travelled on the coach or ferry+ train (whichever was the cheapest at the time) from Sweden to England twice a year to see my boyfriend. Only very wealthy and privileged youngsters travelled outside Europe. I didn't know any such people.
My parents, who could have done it, decided in the 50s (when holidaying by plane was already an option) that this was likely to be disastrous for the environment so they wouldn't do it. They also decided at the same time not to run a car. They had brilliant holidays: my childhood is filled with memories of waking up on a train station and looking out to see where we were or going down a narrow mountain road on a bus filled with locals and their market produce. My parents travelled all over Europe on public transport. They are certainly cultured: they speak about a dozen languages each- not least because of the practice they've had on their travels.
Dh and I did buy a car when our eldest became disabled, but otherwise we've stuck to the same principles. Only flying when necessary, sticking to holidays which were accessible by other means. That absolutely does not mean confining yourself to the UK. And some of our best trips, the ones that have felt most like adventures, have largely centred on walking.
My db is a fairly high-ranking academic: the kind who needs to go to conferences and meetings all over the place. Again, he only flies if absolutely necessary. And what he has found is that it very seldom is.
My parents aren't going to be around to see the havoc wrecked by climate change. They made their decisions with the wellbeing of your generation in mind, lockdown.