there is more traffic on trails down here due to the limited number of places to ride, Alafia is a bunch of little loops, so you are likely to run into people. I take dogs to Boyette when I ride with them, it just seems to be the easiest place and no one has ever seemed upset. I have taken dogs to Alafia and had both good and bad outings, stopped after the bad one. Carter was fun and painless with them too. I don't want to ruin someone else's day for whatever reason. If someone doesn't like trail dogs and complains, they are the automatic winner since it really is illegal here.
one thing to keep in mind down here, it is unsafe to allow your dog up to the waters edge. unless it is actually cold, I keep mine away from any thing that might harbor a gator. we had a big one approach the dogs at the TOE and it skeered me bad.