[Growls. This is a side of Marco most people don't get to see.]

Then don't. Carve your own path and let him do the same. You don't have to walk away and never look back in order for him to get stronger or keep taking the lead. You do it side by side.

You want him to stand for himself? Then go be proud of him for doing his best and getting better. So long as he has to keep watching your back as you try to show him the way, he'll think that's how it's supposed to be. Give him a nudge from behind then.