WhatsApp channel with 12? – gutefrage

Hi, is it “dangerous” in terms of data protection to have a WhatsApp channel at 11/12 years old if you don’t say/show your face, address, phone number, name, etc. when strangers (who you don’t know personally, don’t have the number) have subscribed? According to my mother, that’s dangerous because then other people can write to you, but you don’t see the number of the channel owner, right?

What would you recommend, delete it or keep it and continue not to show any personal information?

Thanks in advance for answers!