The gratifying thing about being grown is that you've been there, done that, written the book, picked up your share of life's battle scars, yet are still standing and thriving. Hopefully wiser from it all. The world is your oyster. You have the freedom to make choices denied to you in the struggles of your youth. Your self-knowledge is top tier. You definitively know what your passions and interests are. You know and have the power to avoid situations, people and so on, that don't bode well for your peace of mind. Rather than the blowing with the wind of our youth that came with chasing fads, trying to "find ourselves" and hanging out with fair weather friends. Many of whom we will never meet in life ever again! The struggles are long gone and you can experience life on your own terms. Yet have tonnes of good memories to look back to, savour, reminisce and laugh about. Personally as a man, my best years have been after 40. For whatever reasons, lots of young and middle aged women are attracted to
silver foxes 
. No more baggy jeans and throwbacks. All cuff-links, tie clips and formal, grown folks attire. Always doing grown folks stuff and heading in positive directions personally, fitnesswise, professionally etc. This feel-good song always reminds me of that, for some reason.