I'm a SAHM at the moment to joint DC with DH.
I did a clean of the house, changed sheets ect... the other day and left DSCs room. I haven't tidied their room in ages either. Frankly because it's disgusting and they have been asked multiple times to tidy it and it never gets done or ends up the same way in 2.5 seconds. They don't do anything in the house and I'm sick of it.
DH thinks I'm "mean" to tidy/clean the whole house except their room and change everyone's sheets except theirs. I've told him they are old enough to start helping with this themselves and that I'm not a slave who needs to clean disgusting rooms covered in rubbish.
For context, our DC is very small and not old enough to trash their room or clean it properly themselves.
DSC are 9 & 12.
I am aware this is an older child/teen "thing" but I refuse to deal with it when they are old enough to do so or at least help themselves. DH never makes them so I'm washing my hands of it.