If you are concerned about such things, perhaps you would be better off having the wedding in the US.
If you have a wedding in Belize, things will go wrong, and not-according-to-plan. I guarantee it. You have to be able to go with the flow to some degree.
When my wife and I were married in San Pedro, there was a hurricane sitting off the coast and most of the people who would have serviced the wedding left the island for protection. In fact, when we were waiting in line at the international airport to go through security for our Maya flight, we ran into a honeymoon couple that were leaving. They told us that they were evacuating the north end of the island. My wife looked at me and I said, there is nothing keeping me from the island. Hurricane or no hurricane, we're getting married.
We had rain for a good part of most days while we were there, the cake lady left and we had to use a third or forth backup (which was not at all good btw), our preferred reception location had been evacuated and closed, etc.
Luckily I was marrying a very go-with-the-flow type woman and my guests all fed off our no-problem energy. We had a terrific time and an amazing experience that we'll take with us to the grave.
Rarely does everything go according to plan in Belize (or elsewhere for that matter), but if you can't roll with the flow, then Belize in particular might not be for you.
Now back to your regularly scheduled drivel...