Anyone! But never on a whim; the journey has its price.
Talent certainly helps, but so called mediocre talent is not the absolute deal breaker most would have you believe.
When setting out on any creative adventure, the most important thing to have is a synergistic combination of extraordinary passion, deep, all-encompassing sensitivity, and perseverance. Lots and lots of perseverance.
If you’ve got that little package together, you’ve got all you need. You can become an artist, or you can become just about anything else your heart might desire.