Our first trek in the RV. Bring the Dog? Yes or No?

We triedto board our boston for 4 days. He is such a people person, he did not eat or drink much whille there. Had to take to vet and give him Iv
he loves to go with us, and loves the 5er.

The moment we start to put things in 5er he knows we we are going.
one time when I backed on to hitch, I left the door open, and he jumped in. I did not see him and shut the door. Worried me when I found him.. we love to take him