Can I bring a Florida wrongful death action based on the death of a child or an elderly person?

The answer is potentially yes for both. For a child, if you are a parent of the child, then you have a claim for wrongful death of your child. If it is a elderly person and the elderly person has a spouse, then that spouse has a claim for wrongful death. If the elderly person does not have a spouse, then a child of the elderly person, an adult child of the elderly person, would have a claim for wrongful death.