Bob asked: Helmets are required for 16 and under, Florida state law. Are helmet requirements different in Sumter County, Florida? (Personally think helmets for everyone, motorcycle and bike.)
You are almost correct about helmets. The wording is actually “under 16”.
s. 316.2065 – Bicycle Regulations
(d) A bicycle rider or passenger who is under 16 years of age must wear a bicycle helmet ….
Although local authorities can legislate restrictions applicable to bicycle use, I can find no Sumter County local ordinance that would do that.