It's telling that - as the family IT person who buys the computers - any time I buy someone a new computer, I need to spend _at least_ a few hours hammering out the rough edges. There's software that needs to be installed, software that needs to be _uninstalled_, drivers that need to be updated (I once bought a laptop that was shipped with a non-working mic; driver update available), software that needs to be bought ("what do you mean Office isn't included?!"), and so on. Most users aren't able to navigate that themselves.
Moving someone across ecosystems isn't always possible, either. While I've made some Linux migrations, and might consider Mac in some others, there are use cases where Windows is a must. Of the Windows installs I'm theoretically in charge of, there's Windows printing to a 20-year-old ribbon printer, Windows "because I need, specifically, QuickBooks Pro 2016", Windows on a cash register (!) that the vendor no longer supports, Windows for an autistic girl who I wouldn't ask to adapt, and so forth.
Moving someone across ecosystems isn't always possible, either. While I've made some Linux migrations, and might consider Mac in some others, there are use cases where Windows is a must. Of the Windows installs I'm theoretically in charge of, there's Windows printing to a 20-year-old ribbon printer, Windows "because I need, specifically, QuickBooks Pro 2016", Windows on a cash register (!) that the vendor no longer supports, Windows for an autistic girl who I wouldn't ask to adapt, and so forth.