I just made a blacklist for my female young-adult sim.

Now, I want to make an identical blacklist for my female adult.

Since young adult & adult share just about everything -
Can I, in theory, just copy-paste my current blacklist, and then replace all new instances of the word "young adult" with "adult"?

NOTE: I realize this likely won't work for teen, toddler, etc.

If the CAS item is valid for both YA and A you can simply add it in the xml (open with a text editor)
same parts, no need to dublicate -> where the line age is add separated with a comma
YoungAdult, Adult

If something is not valid, I guess then you will receive an error note.

I love you guys so much

It worked like a charm. No errors!

Thank you for saving me a few hours