Thinking about it ahead of time allows clearer analysis. In the heat of the moment, emotion clouds people's ability to see others' point of view. It's easier to deal with their rules when you think of them as signs that they care. To parents time stands still. The child leaves and then they are back and nothing has changed.
Parents lap that stuff up.
If you acknowledge your parent's concerns they will be more open to treating you like an adult. One problem many students and parents have yet to overcome, and perhaps never will, is having the opposite sex spend the night. Last summer my boyfriend visited and my dad marked one room el boyo and the other la girla. In that situation, showing how adult you've become may only make your parents even stricter.