Is there a way to prevent GA aircraft from parking at jetway?

is there any way to prevent ga aircraft to park at the jetways in the airports.
atc also tell you to park in ga area no matter if you flight a cessna 172, or B787. if you like to park in the jet ways there is allways a ga aircraft park in there.

Under the airport selection
you can choose the parking position.


Not on destination?

Aren’t those AI aircraft for which they don’t have the correct model so they load in one of the default GA aircraft? I remember seeing this in Athens whenever a Dash 8 or ATR was supposed be at the gate.