Answer:
When young I am sweet in the sun. When middle-aged I make you gay. When old I am valued more than ever.
I can be simple or I can be complex. I can be found in this riddle or in everyday life. I can be shapes or even colors.
I am useless when together but useful when I am broken apart. What am I?
Every night I'm told what to do, and each morning I do what I'm told. But I still don't escape your scold. What am I?
Die without me, never thank me. Walk right through me, never feel me. Always watching, never speaking. Always lurking, never seen. What am I?
What gets bigger the more you take away?