Have you considered that when you were a kid you would have been too clueless to notice them and when you're an adult they would be not very likely to out themselves to you?
You're likely not playing the same games they would be either if the target audience of what they're lurking in is aimed at children.
It's fanart of Gigi Murin and Cecelia Immergreen of hololive.
Not of an actual interaction either but it pretty much fits their personalities.