Seriously, it always pops up for my sims to accept the cheerful trait because they are feeling happy and whatnot it says. My households are all friends or family and like many of the same things in general and the cheerful trait usually pops for most of them though I don't take it on all because I do different plans for many of them. I think this happens more often than not on my sims with the cheerful trait and it's like I don't wanna remove it because I feel like that goes again who they are naturally. I'm terrified every time I throw a gathering if they sit down to play the woohoo game because they will start laughing like crazy and I have to watch closely. They're just a fun loving, mischief making and joke telling group. I can't tell you how many times per sim day I have to make them run to a bathroom mirror and try to calm themselves down so they don't die. This last death, they were on side by side treadmills working out and joking with each other and next thing I know bam. I thought they were just flirty and I was pausing and decorating and totally missed it. So yeah, just would like to turn it off bc it's just too much when to me it messes everything up as I explained.