So the old banana bush is where you're talking about right, behind blue? Leads sort towards wolf camp, but isn't the ramp directly to blue buff?
That section is normally NOT the mid laner's responsibility. It's also not actually safe for them to stand there.
Red/Purple Side Level 1 assignments are:
ADC: Blue buff ramp
Supp: Banana bush
Mid laner: Mid lane
Jungler: Wraith camp entrance
Top laner: Tri bush
Blue side Level 1 assignments are:
ADC: Tri bush
Supp: Wraith camp entrance
Mid laner: Mid lane
Jungler: Banana bush
Top laner: Blue buff ramp
When I say "mid lane," im not talking about AFK under tower, I'm talking about providing vision all the way to the far side of both lane bushes. This prevents an enemy from landing a skillshot ( blitz Q, morg Q) from the fog of war onto either the Supp or the Jungler. This is the only 100% safe way to prevent an invade into the jungle. If no one is in the mid lane, you cannot be in the banana bush or wraith camp entrance. If no one is in the banana bush, you cannot be in blue side jungle. If no one is at the blue buff ramp, you cannot be in blue side jungle. And so on.
As a mid laner, what I typically do is run asap to Wraith side lane bush. This is as good as I can do on my own; I can see the enemy before they run into the banana bush and can also see them before they enter the lane bush. Ofc if everyone is doing their proper assignment (never happens) I'd just do mine as well. But I've literally never seen proper level 1 play in soloQ or normals, and I have over 2500 games.