What am I?

“Playful children know me intuitively, some older sages remember me, but mostly I am forgotten along the way… what am I?”

Gryphon now loves riddles. As if my brain 🧠 isn’t already creatively pumping enough (which sort of confirms the idea here...), he keeps asking me to make some up.

Apparently, the ones I find on the internet are just not good enough. 🙄

So, after lying by the fennel in the garden, I came up with a few. It actually wasn’t that hard, once I focused...

Anyway, what am I?