I always try to put the agency in the players hand so I would always make them lead on the scouting or insight roll, unless it really needs to be done in secret, which means there are rare occasions when they cannot push.
But, insight and scouting do not generally lead to injury to the player characters, whereas a bad parry roll could, so it is more important for the GM to be flexible in how this is handled.
For dodges and parries it seems perfectly reasonable to allow a player to push one of these rolls as it does specifically use an action but more importantly it is an active player choice, scout and insight are mainly instinctive and passive reactions to things happening to the character. For me that is where the distinction comes from active vs passive.
Dodge and parry also seem perfectly viable things to also use Pride on as it is something a PC could be very good at doing and relevant to thier character back story.
Ultimately, as it is unclear, it is the GM'S call but whilst making the decision you need to consider a) what mechanics become broken if this is aĺlowed and b) what is actually most fun for the GM, players, and the game.