When will it endddd!!! My almost 7 year old

Him: mom I have to go to the bathroom, can I please go?

Me: yeah bud you don't have to ask silly

Him: (frantically runs to the bathroom)

Me: don't forget to wipe your butt

Him: mom when do I have to not wipe my butt anymore? (Yes he was serious lol)

Me: bud you'll have to wipe your own butt for the rest of your life

Him: well mom not when I'm old then someone else will

Me: yeah your right buddy good point, but until then keep wiping it!

Seriously this kid is too smart, always has something to say back!