This is the way.
(Real photographers don't need autofocus.)
I've started to have a LOT of fun adapting older lenses and focusing manually.
My eyesight isn't the best, but the focus aids on the mirrorless cameras really help that, and when you're doing this, you're not generally shooting sports, etc...you have time to compose, focus.....
I DO believe there is something to it, with regard to slowing down with photography again. I found this when shooting old Medium Format film and old fashioned view cameras with ground glass and all.
Its a different way of shooting, but pleasurable.
And you can scoop up some amazing deals on some old lenses that were of quite high quality, and the fact that many have "character" is a plus.
No, they aren't clinical sharp as the more modern lenses are today.
But I"m finding that clinical sharp isn't always the best tool depending on what imagery I"m trying to create at the time.
LOL, there's times I don't want to count the pores on a models face...but would rather have a softer skin texture and maybe a more swirly bokeh in the background that really isn't readily recreated digitally in post.....and you can score that for as low as $50.
I think the mirrorless body is really opening up a lot of old quality glass for new use.
Just my rambling $0.02,
cayenne