My teen just backed the chocolate cake, added the candles, but can not blow them out... I don't recall having problems with teens blowing out candles before... is this a rather new glitch? Might be a few months since I aged up a teen.
I'll age her up in CAS instead, just not as much fun...
PS: The YA in same household is able to blow out the same candles. Such a pity it's not supposed to be her birthday, though...