Had I thought about that, I would have never bought a Jolla in the first place...
if you feel awkward, you can detach the kbd in front of people and use vkb (no idea how shiny that part will be itself without any wood), more worried about metallic dust though
Personally, I don't mind the keyboard being 1 mm thicker. I've owned an N900 for some years so... I prefer to have the magnets invisible... But feel free to make it thinner, as long as it won't do any harm to functionality.