That’s always the tradeoff you have to make since you’re balancing the benefits to the user and cost of development - customers do benefit if you can ship better things faster because you’re not held back by discontinued browsers. <dialog> might not be there quite yet but it’s close and if you already don’t support IE11 there’s an obvious appeal.
What I would proprose then is, that companies should state their minimum security requirements to work with any other entity somewhere publicly available, so that it will not be something ad-hoc invented for some entity.
I have seen companies trying to treat smaller ones like some kind of supplicant entity, that one can push around and ask about interna, that could easily lead to the bigger company building a copy of the smaller company in a few months, since they got much more workforce to put to it, if they really wanted. Asking for things like "architecture diagrams". I am quite sure, that big companies will laugh you out of the room, if you asked them to provide same for their architecture.
Bad UX. Or maybe you're in an industry where it is your job to secure users computers.
I’m almost afraid to ask, but what do you think is a large team?
Some kid somewhere digs up a rock under gunpoint and we're expected to throw it out as soon as something shinier comes along, disgusting. It's because of companies acting like this we need regulations on support and right to repair.
https://support.apple.com/en-sg/HT213264
As far as I can see, the only possibility for buying a new MacBook Pro in 2018 that can’t run Ventura is if you bought the MacBook Pro Retina (Mid 2015) model, which wasn’t discontinued until mid-2018. All the older MacBook Pros that can’t run Ventura were discontinued in 2017 or earlier:
https://en.wikipedia.org/wiki/List_of_Mac_models#2015
I think Ventura not supporting a model released more than seven years beforehand is a reasonable cut-off point. But if there are people who want to use an older model with a newer browser, they can use Firefox or Chrome.
Korea?