Too early?

Is 3 weeks too early to take a baby around a lot of people? Every year my town holds a festival in October. It's a big thing and the majority of the town goes. I usually go but this year I will have a 3 week old baby. I don't plan on letting a lot of people touch her or anything, but there will still be a lot of people near her. I do plan on getting her vaccinated so she will have had her first set of shots by then. Should I go or skip it this year?