Welcome from SoCal!
Hey, no fair going down there and shooting 'em
At 1st I thought that was a yellowtail but now it appears to be a nice flattie.
Note that if your kids are under 4 or 6, they won't either understand what they are looking at nor will they remember it later. The flip side is that kids can have fun anywhere doing most anything, Give 'em some sand or dirt and they are good for a while. Give them a stream, lake or ocean bay and they are good for the summer.
In your shoes, I'd buy the largest unit I could safely tow and stay under 25'. The 25' thing is a state and oceanside thing. There are some exceptions so check the sites for where you want to be for such restrictions.