I would suggest that age can bring focus. You may have various interests, but you get better and sorting one from another at deciding which gets attention when and where. You've seen more, and you've learned how to choose what gets attention. To be selective.

This is different from the absorption of youth. It may actually get a bit harder to be so fully absorbed. But a bit easier to set aside an intriguing novelty that does not pertain to your current endeavors.