No worries. That happens a lot, even to adults.

Once, I was running in a 5K race through a park, on a course I knew well. About halfway, I came upon a guy who was ahead of me but had gotten lost and stopped. He called out to me, "Which way do we turn here?" I said "Follow me!"

We ran together the rest of the way. And I tried not to slow him down ... in fact, by running at his pace, I set my PR for that course!

Also, in the only marathon I've run, I got injured partway through and had to walk the rest of the way. So I reached the finish line about an hour later than I had predicted, and my wife was panicking, figuring I must have been hit by a truck or something. She got over it, and I'm sure your parents will get over the worries they had about you.