Iowamom, I'd consider renting a car. The weather is always iffy in Florida and you may need to camp out in your car for a bit if there is lightning in the area. There aren't many places that are walkable from the fields and not really any shelter at the fields themselves except the bathrooms, which are not exactly places you want to visit unless necessary.
Jupiter is awesome. A really cool experience for any player, whether the golf carts are lined up five deep for them, or not.