Honestly, I think people who are brand new to carbon are overly worried about reactivity when they're home cooks only, unless of course they personally do not like the look of patina. I know I was very nervous about it when I first thought about jumping into the carbon world but now at this point I live and die by carbon, although I still want a SS or clad Gyuto as my "tying one on while cooking" or "brought knife to a friend's house" blade. Also, if I still cooked for a living I'd be weary of carbon depending on my position, the size of the kitchen/prep areas and my fellow employees. Too much risk for someone to pick your knife up and mess it up. But at home that is much less a concern.
Unless you wind up leaving your knife soaking wet for long periods of time, in most cases they won't truly rust and even if they do as long as you scrub it with a coarse sponge and a baking soda slurry or maybe some BKF soon after the initial surface rust presents itself, it's not hard to remove. It is true it's better to give them a light mineral oil coating before putting them away though, but really the upkeep needed is only to wipe them frequently while in use, especially in between different ingredients and wipe them dry if they're going to be sitting there for minutes on end on the board while you're tackling other prep tasks.
The thing that has to be accepted and embraced though, is all of them will patina and some much more aggressively than others... and different steels, both flavors of and within a certain type between different manufactures, will give a different look and color of patina sometimes. One such example is Masakage Shimo's sometimes get a rep for producing very yellow patina's, which many people seem to dislike, but other White #1's from different smiths may not and likely will give more blues, oranges and greys, although a lot if not most of patina color is also what ingredients you're cutting.
Yes matter of fact my plan if I get carbon blades, which I think I will, is to force a mustard patina. I ready a couple articles and threads on how to do it and the patterns one can get are cool it seems like its very simple to do.