One must never assume that a character is sympathetic because of either the actor playing them or the fact that they're a lead. I think that's a recipe for failure actually because if they become unsympathetic you lose your audience.
Wrinkles should merely indicate where smiles have been.
Anyone who stops learning is old whether at twenty or eighty. Anyone who...
Age is an issue of mind over matter. If you don't mind it doesn't matter.