Yes, Duelist giving duel skill.

I'm almost certain this has been suggested on this forum but the Duelist trait should give Personal Combat Skill buff. A lifestyle trait, something you do as a hobby, something you do often. If you are doing it often and as a hobby it stands to reason that you would be more skilled at it than someone who never does it. Like a person training for a sport, they are better at that sport with a year of training than if they didn't have that year of training. Training gives constant improvement, spending your life dueling would lead to constant improvement over time. It somehow gives martial? Where is the sense in that if it doesn't give combat skill. Dueling all the time makes you a better commander but not a better fighter? If constantly training/doing something doesn't make you better at it then none of these lifestyle traits should give any sort of buff, that logic would leave them with the opinion modifier and that is it. It does not make sense in the game, it does not make sense irl.