You're never too old.
I love everything about animation. It is hands down my most favorite art form next to music.
I have an appreciation for all styles of animation. I see it as an art form and not just a source for entertainment. In the past I've have had the opportunity to animate everything from full armature stop motion characters with an old school 16mm Bolex camera to designing characters for a complete 3D environment. Every animation style has its own special personality or characteristic that lends to the art form. I just love it.
For the most recent animation projects, I primarily used Flash. But sometimes I use Flash as well as After Effects. The primary tools I love to use are Flash, Adobe Illustrator , After Effects and a WACOM Tablet.