What's something you hated as a child but are grateful for as an adult?
Growing up, I had a regimented bedtime schedule, and I hated being told when to go to bed because "I wasn't tired".
As an adult now, however, I appreciate the importance of a sleep schedule to allow me to function. My partner did not have a strict bedtime when she was a child (she was raised by her grandparents mainly and they let her go to bed whenever she liked), and now as an adult she struggles with going to sleep at a reasonable time, can't function in the mornings whatsoever and is always tired until the late evening when she finally starts feeling awake.