Timmy, lad, you are never too old for a pet. And, cats are easy due to their independent nature. Now, I am about 5 yrs older than you and if you could have witnessed what I had to handle last night, a cat would be a walk in the park. This huge dog I had with me as a try-out is one of those big lugs who just wants to be loved constantly. What a handful when I had to take him out. But, in a day or so, we'll be trying out a much smaller dog who is more mature. Hopefully that one will work out.
But if a somewhat frail 110lb. me could handle that big 75 lb dumb mutt, you could handle a little kitten.