It's convenient to RV in the USA, and it's not in Mexico. It's barely affordable to RV in the USA and it's not in Mexico.
Whatever the facts are, it's not going to be up to me to find out. All I know is what I've got over here.
If the Mexican government and the powerful ones in Mexico are not interested in promoting RVing tourism in Mexico, this should be very telling about the present RVing situation in Mexico.
BTW my RVing friends share some of my perceptions. Somebody needs to work towards changing this. But, who has the incentive?
I'm only contributing this post as my opinion of why some of us do not venture into Mexico,....in our RVs.