Conversation so far:
When did Marc Marquez debut in a world championship?
Márquez made his championship debut on 13 April 2008 at the 125cc 2008 Portuguese Grand Prix at the age of 15 years.
Was fifteen a young age for Marc Marquez to be competing in the Grand Prix?
Marc Márquez is the youngest Spanish rider to take a pole position or a podium in a motorcycle racing world championship.

Question: Did he continue racing?
Self-contained rewrite: Did Marc Marquez continue racing after his debut in the Grand Prix?