should I get bottles just in case?

I'm planning to only do breastfeeding and I want to only breastfeed at home but when I go out I feel like I will not be comfortable breastfeeding in public. I know there is nothing wrong with breastfeeding in public but if people stare I will feel extremely uncomfortable because I am a very shy person and I don't like to be stared at. If I get bottles I will only use them when I go out somewhere. If I don't get any bottles I will probably go to the bathroom to breastfeed but I'm not too comfortable with that either. I could wear a cover but I'm not sure if that will be too hot for my baby because I live in south Florida. What should I do?