I think Cheryl got hers on Friday and I haven't gotten mine yet (but I have my 1444-C).

I'm not requiring these.  Clients may have the 1444-C or if they say they got the full amount, no point in waiting just to claim $0 RRC.  If someone wants to tell me they never got it (and their prior year return indicates they should have gotten it) then I'll need to see a transcript showing that the IRS doesn't think they sent one out.

The advance CTC is a much bigger deal IMO.