Am I Old Enough to Do This?

Did you ever have that fleeting moment when you feel like you're too young to a) be married b) have a house c) have kids d) all of the above? Then you blink and shake your head and realize a) you were kinda a young bride, but not like creepy-young b) technically the bank owns your house for about 25 more years c) right, and your kids have a cool, average-aged mom d) you're not really THAT young afterall...