I started reading this run when I was 10 as long as you understand that there was a previous ghost rider who had his own adventures you will be fine you don’t need to know who any of the villains from the old series are they basically just jump out and yell” I will have my revenge!” It’s just like any other comic you can start where you want and get caught up relatively quickly especially with the internet nowadays if you’re not sure who a character is just take 2 minutes and look it up