Tinkered with bass when I was a kid - it was my dad's. Been so long since I did but, now I have my own many many years later :) It is a joy to get involved with a musical instrument no matter when! And we all start from the beginning.
I have to say that small starting point like you have shared is a great example! A slap bass tutorial I saw earlier today compares it to wax on, wax off, from The Karate Kid.