The cost of admission is minimal. However, I do understand some people won't be able to afford it. But there are other activities that are free that they can attend. They are providing musical entertainment, so that's probably one reason they are charging admission ( I assume). I'm sure throughout the gazillion years they have been having it, the crowds have quadrupled, so I'm sure they have had to hire more officers to work during this time and that costs money. I'm sure the security/police officers are working this festival to bring in extra money for their families for Christmas and they probably wouldn't want to work for free and volunteer their Christmas spirit. I know I sure wouldn't want to. :/
I did call them to see why they are charging and they said it helps pay for the cost of the festival which I understand. The cost for admission is only $5.00.
Musical entertainment is someone named Frank Foster, who I have no idea who he is. I see why he is "Louisiana's best kept secret". No one knows who he is.

Someone named Lainey Wilson will also be performing. Don't know who that is as well.