If you have a YouTube channel, whether it is for business, or just for fun, YouTube is now requiring that ALL videos
comply with the Children's Online Privacy and Protection Act.
They were sued over this, so they are quite serious. ALL videos (old or new) MUST become compliant. Failure to do so can result in videos being removed, accounts being shut down, and possibly being fined by the government (not likely).
This is a GREAT opportunity to sound the alarms for your clients, and look like the guy who is looking out for them, by letting them know, or fixing the issue.