But if you're not old enough for the change and you're using reliable birth control and know you aren't pregnant, the possibilities are endless.
As the audience disperses, a young fan, surely not old enough to remember any of those 80s TV shows first time around, shakes his head with a smile.
At the same time, there are not enough old, white Americans in Republican ranks, because there are not enough old, white Americans in America, because the electorate has changed and is changing at an astonishing rate, and relying on those white votes will no longer do.
Not yet old enough to vote, Ferishta, 15, a beauty school student, echoed Roashan's sentiments.
They include high schools on their journey, even though most of the students will not be old enough to vote.
The first weekend of the NCAA tournament ramped up the crazy, but nothing was as wild as the Sweet 16 berth clinched Sunday by Florida Gulf Coast, a college not even old enough to apply to college.
I'm thankful that I'm old enough not to be judged by my ring tone.
There was "too much of the same old - not enough adventure, surprise, shock, difference" on TV today, he added.
Verbeek said the 21-year-old was not fit enough after playing through the season with painkilling injections to help a pelvic problem, despite the Dutchman having warned manager Gordon Strachan of English second division side Middlesbrough of the dangers.
CNN: Lee wins South Korea World Cup spot despite injury problems
Heck, we even get a watered down version of Netflix, which means there are plenty of old movies but not enough of the new and cool TV shows.
But the wholesale auctions left CarMax with too many quickly depreciating, dime-a-dozen, one-year-old Ford Tauruses out of rental fleets and not enough of the low-mileage, five-year-old Honda Accords used-car drivers dream about.
Now the cold war is over the old world has not changed quickly enough.
That is not a common enough phenomenon at Old Trafford, according to Ian Stirling, vice chairman of the Independent Manchester United Supporters Association.
Some of you are old enough -- not all of you -- but remember back in the '80s how everybody was saying, oh, Japan is taking over and they're buying everything here and we're on decline?
But going too early risks leaving too much money in the hands of the new investors, not enough in those of the old.
But the new products were usually cheaper and easier to use, and so people or companies who were not rich or sophisticated enough for the old ones started buying the new ones, and there were so many more of the regular people than there were of the rich, sophisticated people that the companies making the new products prospered.
While those young enough not to be obviously too old by the time they accede are probably too young to be chosen now.
Perfectly possible, say oil experts, except that not enough is being invested to maintain old fields, and decisions on the new ones are being taken too slowly.
Babel later apologised for the post but it was not enough for the 24-year-old to escape punishment on Monday.
Then, there were the boys, old enough to sense that all was not well with Dad but still laughing at his jokes, loving him, depending on him.
The problem there is if you wait until they are old enough and mature enough to understand and say yes - have you hurt them by not doing the surgery or the medication earlier?
Croydon Old Town Business Association said the money was not enough but "it has set the ball rolling".
Mr Ghannouchi has dismissed many of the old guard from the cabinet, but that was not enough for his opponents.
If not, maybe he should go somewhere where plain old friendly is good enough.
If they were now old enough for boarding school, then this woman was not as young as she seemed.
Tsvangirai garnered the most votes in March but did not win enough to avoid a runoff with 84-year-old Mugabe, who has ruled the country since its independence.
While I'm not intimately familiar with their commenters of old, I've spent enough time reading them to recognize the same garbage there as we get on Engadget.
ENGADGET: Editorial: Facebook, single identities, and the right to be anonymous
The IPCC said the officer was found to have downgraded the call from "emergency" to a "prompt response" and deployment of officers was not quick enough given the vulnerability of the 15-year-old girl.
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