Yes. 16 is ok
No, the age is 18 to be hired.
I would definitely call and ask. Being a Christian run business, I would think that they would be willing to hire anyone who would be willing to work.
I don't know but it can't hurt to ask. All they can say is no and you move on.
I don't see why they wouldn't, as long as they were able and available
Thanks! Your answer is awaiting moderation.