There are many ways you can avoid being bit, one is do not handle,
something I do not condone. Then there are rubber gloves or kevlar gloves, still yet there are some very nice long forceps made to facilitate cage cleaning. Also you could think about the cupping method, which is putting an empty cup over the tarantula and sliding the lid under it [easier than it sounds] to hold the tarantula so you can do a thorough cage cleaning. There are some very nice cabinets made with glass fronts and a locking mechanism to keep prying hands out. Education of the youngsters works well and helps little ones respect the tarantula
...................just some thoughts
Lets hope you get another but first the epi pen