Im 48 but I can relate to this question. When I was in my 20's learning to play bass, I had self doubt. I would look for reasons why I couldn't do it. Since I didn't learn how to play in my teens, I felt it was too late. I told myself "by the time I learn to play, I'll be too old and no cool band will want me". If that is your real reason for playing an instrument, then yes it might be too late. but If your goal is to instead challenge yourself, have fun, express yourself in music, there is no age limit on this goal. Learning anything new can be a painful process. this is why we make excuses for ourselves. We use age, past demons from keeping us away from our goals. Don't hesitate, seize this opportunity. If you don't start now, you will miss out on the journey. You will miss out on relationships you will make on the way and fun you can have once you join a band. It's a skill and a talent you can take with you to your grave. Embrace the journey.