KFC or fine dining restaurant? (job)?

So I have a trial on Saturday for a food runner position and a fine dining restaurant. I thought that it wouldn't suit me because of the high pressure/expectation at a fine dining restaurant, considering that this is my first job and I am 16. I got an email today from the assistant manager at my local KFC inviting me for an interview. I accepted the interview at KFC but I am considering whether or not I should decline the trial and the fine dining restaurant. Opinions would be appreciated.