Jaxon's Father Is Teaching Him to Take a Shower by Himself

Jaxon's father is teaching him to take a shower by himself, without help. First he turns on the water for Jaxon, helps him get in the tub, and instructs him on how to wash his hair and his body. The next evening, he turns on the water and helps Jaxon into the tub, but lets Jaxon wash himself. The next night, he lets Jaxon turn the water on and adjust the temperature himself. Finally, on the last night he asks Jaxon to go take a shower without helping him at all. This withdrawal of help that is no longer needed demonstrates _______________.