[villagetinker]

There are many items that will/may be affected, for example: for about half of the year

Any and all travel outside of the state, airlines, buses, trains, etc.
Cable TV shows, specifically the on screen schedule, and possibly the recording of these
Phone calls out of state (lets see which time is it?), same goes for any type of scheduled video chats, etc.
Cell phones, will they be able to pick the correct time?
GPS, OMG this could be a disaster half of the year.
The constant confusion of having to explain to out of state callers about the time, and for US remembering that we will need to make the conversion when we are calling out of state.
Any and all businesses that have closely tied operations out of state, think electric utilities, etc.

I am sure there are also going to be secondary effects that have not even been thought about, like cloud storage when the clocks on the servers on DST change yours does not, and the WRONG VERSION of your work is saved.

I could go on but you get the idea.
I would really like to see the elimination of daylight savings time, but only if the entire nation does it piecemeal solutions are going to present a lot of problems.

Any and all of your connected devices in your smart home, which time is your cable (internet) going to provide to your devices?
Any calls to a call center for scheduling anything.

This is just me humble opinion. I think this is a very bad idea for JUST Florida to change. My understanding, congress has to approve the change before Florida could actually implement it. Maybe we would get lucky, and the rest of the states would go along.......