He's 3 - packing up isn't on his agenda. My 3.5yo complains when told to pack up that it's too hard and she neds help. So I make packing up a game. We have a race to see who can put the most blocks back in the bucket for example. She is starting to understand that she needs to put things away before she plays with something else but she still needs constant reminding and encouragement.

She also needs help with the toilet. She can't wipe herself properly all the time so I help her and remind her each time how to do it. It's pefectly normal at this age to still need help.