Young people have an advantage over older players in this game, for a couple of reasons.
1. They have boundless energy, while we old folk tend to get cranky when we stay up past our normal bedtime. Young kids can play all day and night, and the good ones generally do. It's all they know. Older people have fuller lives with other responsibilities such as family or mortgage.
2. Younger players have a huge advantage when it comes to accepting and taking on risk. Older players tend to be more conservative with their money, since it took them a long time to earn it, and they want to keep it, not blow it all. Younger players don't have huge nest eggs, they're looking to build one instead. This allows them to risk everything they have, if need be... they're much more willing to take chances to make that big life-changing score.
This is why almost every poker tournament you watch ends up with 8 younger kids at the final table and very few older people.
It really just depends what your goals are. If your goal is to enjoy the greatest thinking game there is, then you'll do just fine. But if your goal is to make money and "live the dream", well... I'd say good luck, but don't get your hopes too high.
I'm an older person and I play for the love of the game, I've never played it for the love of money. I wouldn't turn down a big score of course if it ever happens, but I don't sit around daydreaming about it.