I don't agree with you, only for the fact that right now, in this age computers are everywhere, everything is digital, it is not luxury to learn how things work, it's survival, it's not expendable time, it's professional time
The number of people who can learn all of the skills that someone in the world considers essential is small. The number of people who can do all those things while having a job, kids, and a working partner is smaller still. The rest of us have to focus on a proper subset.
For me, every minute I waste learning how to configure my server is a minute I could have been playing Legos with my kids or riding my bike or sleeping.
But eventually they will be old enough to require an email address, so should I just let them use Gmail and stop worrying, or try to have something up and running until then? At least protect them from the data kraken until they can make their own informed decisions about that. But then I'm not just responsible for my email, but my whole family's email. What about 30 years down the road, when they long moved out? Am I still gonna sysadmin my family's self-hosting galore when they finally have kids on their own? Is it even still possible then? At least for mail it looks like when it's growing over my head I can just sign up with some mail provider (that hopefully values privacy) and let them handle that whole BS.
It might not even be worth it anymore at some point though, if basically everyone else you communicate with via mail is on Gmail. Then Google already has all my email as well.
An awareness campaign to go the extra mile in terms accessibility would be great (and that doesn’t mean dumbing down, the two seems to be equated sometimes)
But also at past companies there was never the idea that internal tools had to support accessibility features, as we give for granted that we would never hire people with some sort of disability and they are just users that stay at home, it's sad and upsetting, as a person who doesn't need any accessibility feature to operate now, I really feel sorry for others who do, and I hope that I will never need them, because like your situation with products at employers like control panels and similar is very sad
The best I managed to do is that my family's email addresses use a custom domain I manage so I am not locked into a single webmail provider. Occasionally I have to deal with some issue or delivery delays (especially for authentication emails) but it's orders of magnitude less effort than when I made the mistake of trying to run my own mailserver.
Being self-sufficient is a noble goal, but I think it's also helpful to be realistic about the costs in order to make the proper cost/benefit decisions.