Any Animal In The World As A Pet

I personally would love to have dolphins as pets. I will live near the beach or an island and the ocean will be its natural habitat. It would be best for them to live where they ought to be and I'll be visiting them daily. Besides, I won't have to worry about where to buy their food since the ocean will provide it unlimited sustenance and there will be no need for vet visits because it's unlikely they'll get sick in their environment. Of course, there will always be a risk for them getting into danger but I'd rather than they are free to roam the outside world than be confined in an enclosure.