This is such a special story. My heart goes out to you and Cooper both. My daughter is a Downs Syndrome girl. She is now 37 years of age. However she acts and looks much younger. She reminds me of a 17 year old girl. She will stuff my mailbox full of letters to her boyfriend. I am glad the mailman has a sense of humor. I bout an older Corvette a few years back. I would take her for rides with the t-tops off. She acted like she was in a parade waving at motorist at the red lights. To my surprize most everyone waived back. They are indeed special Angels.
I wrote a poem about her, I invite you to read it. I wrote it when she was very you, like 13 months old. here is the link:
https://wireeditornewman.medium.com/my-spcial-needs-angel-bcf5ae11fab1