Too old

In the episode where Peter returns in January 2007 and Charlie beats him up, norris organises a quiz team with himself, Ken, Emily and Rita, blanche is annoyed she isn't included and says to Emily and Rita ( if I'm too old, you two must be well past it), I don't want to be rude but I can see blanche point Emily and Rita are both older than her (in the show and in real life ), so norris thinking she's " too old" doesn't really make sense to me