Cheesy vegetables and cooking with the boy

ARGHHHHH.......why do mothers cook with their children???? I have just cooked cheesy vegetables and homemade burgers with the boy..........and thou it was fun, it was also a nightmare, and made such a mess that really needs to be seen to be believed. This being said, he again showed me just how much he is maturing. Yesterday, we went to the shop and he choose his sweets, paid for them himself and got his change, which was bad enough.........but then today, he actually did help cook..........but he's only 4.......and the vegetables are something that he can actually do himself if i just put the ingredients out for him...........ARGHHHHHHH..........he needs to stop growing up now!!!!!!