You are making a hidden assumption. You are assuming that Saturn’s rings are the same age as Saturn. We can see that other planets do not have elaborate ring systems like Saturn’s so it is not certain that Saturn always had rings. Hovind makes a similar error when he assumes, without evidence, that Saturn’s rings are as old as the universe. That is incorrect.
Going back to your human analogy, it is crucial that the part you examine, bones in your example, are present throughout. If I examined a hair on my head then it would be younger than my bones because hairs fall out and ( mostly

) regrow. Hovind’s ludicrous argument glosses over the fact that he is looking at a single hair and trying to date the whole body from that.
That section of Hovind’s arguments is titled, “The Age of the Earth”. Of course to Hovind the universe and Earth were created within a week of each other so he is talking about the ages of both. Other arguments on that same page talk about spinning galaxies and red giant stars. He is indeed trying to show that both Earth and the universe are only 6,000 years old.
rossum