i don't quite get the meaning of this in the context of accepting agency of others. because it works both ways. either it means you assume that they are interested in you to validate yourself, or it means you need see/experience them actively showing interest in order to validate your approach.

likewise with agency, i can assume someone has agency, which is actually bad because it leads to thinking: if they didn't want this they would have used their agency to stop it. or i can ask myself whether there might be something that could prevent this person from using their agency.

a problem is also that when approaching someone you know what you want, and what you want could be something harmless. but the approached person doesn't know that if they don't know you well enough already.