Basically, Path asked users for their date of birth but then failed to actually block users under 13 or obtain verifiable parental consent. (law.stackexchange.com)
The only way a child can interact directly with other children on Grom is with verifiable parental consent, which can be given by a signature or a phone call. (educationnext.org)
(COPPA - Children's Online Privacy Protection Rule requires schools obtain verifiable parental consent for their children's personal information to be entered during the testing process.) (thecrucialvoice.com)