We had a rusty charcoal grill in the corner of our backyard growing up, but it was usually covered in spider webs and we only pulled it out once, maybe twice, a year. But being in temperate California weather, we could grill out more often than that, and we did. Where did we go instead? We packed up our food, headed to the beautiful parks in our neighborhoods, and happily used the public grills there.
For those of you who are scared of these well-used grills, I'm healthy and here to assure you that yes, it's fine and safe to use public grills. It just takes a little cleaning and know-how.