Why will pelly and phyllis not let me work with them it tells my person to pick up weeds?

Pelly and Phyllis may not want you to work with them because they have specific tasks they need to focus on, and picking up weeds might not align with their priorities. Alternatively, they could be emphasizing the importance of managing weeds as a separate responsibility that requires individual attention. It's also possible that they are encouraging you to take initiative by handling the weeds on your own before joining them in other activities.