What more does carbon require for maintenance? Any good knife I'd wash and dry immediately anyway. Just mineral oil rub?
You recommend carbon? A friend is pushing. The shun ken onion iirc
I use carbon steel. I wash knives after use, realign the blade with the steel rod included in many knife sets, and sharpen them or get them sharpened every few months. I've never used an oil of any kind on the blade.
With a steel knife you don't have to realign the blade (you really couldn't even if you tried), yet you still have to get it sharpened professionally because you cannot sharpen it at home. You also do not need to use any oils on a steel blade.
The reason that many people prefer carbon steel is because you can realign the blade yourself making it sharper, and you can also sharpen it yourself.