respond to the vaccine to develop -- to develop immunity. i want him to be protected. and if he is one of those people, who's not feeling supersick but maybe is infected and could spread it, i don't want him to spread it to someone else. fortunately, he and his siblings have had jobs that they have had to wear a mask every day at work for six-to-ten hours since march of 2020. so, because we've coached them up, their work has coached them up. last year, the school helped coach them up. it's not a big deal to them. >> yeah. well, thank you, doctor. clarita, i really appreciate your passion, too. and look, you know, with children, you can do a mask challenge. who's got the coolest mask? who's got the cutest mask? you know, make your own. hand paint your mask. i mean, all kinds of things to get them to appreciate wearing the mask, instead of saying it's all bad! and not even looking at the science. right? >> don, it's very much like when we have a child come in who