Typically, young heirs do not participate in the coronation ceremony, but this would be a break from tradition.
King Charles has a specific connection to the Mount of Olives-made holy oil used for anointing.
The oil is based on the same coronation oil used at King Charles' mother's coronation.
King Charles' paternal grandmother is buried in Mary Magdalene Monastery, where some olives were picked.
Prince Louis was not present at the Queen's state funeral due to his young age.