I feel as though otherkin/therian community doesn't represent what it used to, don't get any of this here mixed up I think it's great we have so many imaginative young voices, sharing their crafts etc.
The problem I see with the community now, is that otherkin/therian is an identity at its core and children often haven't begun forming a social identity yet.
Really I find children younger than 13 using this label to be very harmful to non-human communities themselves, I see videos of therian meetups now and it's all super young children. I don't feel welcome at would be therian gatherings now, because there's a voice in the back of my head now that it might just be daycare for young children, instead of a deep and mature identity with a wide age range.
Children are imaginative and generally are respected for play as animals or non-humans, if teens or adults experience non-human identity it is generally shunned. Teens and adults need this for support, networking, and protection. Otherkin/therian is an identity, take your children to a park if they wanna make friends.