So I asked about this logo and one boy said that his parents have this bitcoin and his father taught him to draw this logo and he taught his friends.
I hope no criminal around will try to steal his Bitcoin father because the children always said the truth. I am also curious, did the children say where his father save the mnemonic seed?
In this case of the boy, I remembered one thing that the children will be developed in the same way as the parents raise their children from childhood. The boy's father may want to expose his son to Bitcoin from an early age.
I am also happy if the father tells to his children how to save their Bitcoin and how to avoid criminals stealing his Bitcoin because until today many bad guys want to have something but no attempts to buy it instead steal it. If I were you, I will talk to his father about this situation. We know, bitcoins are the target of criminals, and I also know what his father means because he just wants to advise his children from an early, but it is also a loophole if don't don't tell it also how to save it properly.
The father must tell the security 1st instead of how to draw the logo.