When Isaac is going up that hill I always thought he was still a kid but later I find in realty he was in his 30’s and I thought that was something interesting along with what you have posted.
I made a connection years ago on a Bible story. David was no child when he faced Goliath. Saul offered to allow David to wear his armor and Saul “from his shoulders and upward he was higher than any of the people.” A child could not have worn his armor.