What Is the Best Age to Start Pre-K?

I was thinking 4

there’s a lot of programs for younger kids that help them get a jump start on school, it’s only a few days a week for short periods but i think it’s a good idea. my daughter will start when she’s 2 and a half.

@avalunasmama, I feel bad my daughter is three years old I’m finding programs now . I have her start next year