Well, sims need to have new clothes when they age up because their body sizes and shapes change, except for YA to Adult. How is Dresser supposed to know what it is that you think is an appropriate outfit vs. awful if someone, somewhere thinks that a hot dog outfit with clown makeup and bunny slippers is just dreamy enough to die for? <3 o:)
Okay, but seriously the answer lies in some possible combination of making unwanted CAS Parts Not Valid for Random and developing a Dresser/MC Blacklist of parts to never be used. If other players here can share what has worked for them that would be great, but otherwise a thread about this on the NRaas site might prove to be more helpful.
Dresser is one of the few NRaas mods I've never used. Frankly, it scares me.
