A question for a son who goes to school for the first time

(1)I was driving my son to school for the first time
(2)When I asked my worried son if he was okay, he asked
(3)Dad, how long do you have to go to school
(4)By the age of 18 I had answered
(5)The son nodded his head quietly
(6)My son told me when he got to the front door of the school
(7)Dad, instead of me, he will hug my dog
(8)I told you
(9)You can do it when you get home
(10)My son said with a sniffle
(11)Dad, Dad, I’m going to give her a big hug instead of me
(12)You can come home and do it
(13)I saw my son’s eyes wet and he was sniffing
(14)I added
(15)Don’t worry. You’re gonna do well. You can go now
(16)My son stole his nose and asked for the last time
(17)Don’t forget to pick me up when I’m 18