Preschool Delay

I'm wondering if there are any moms out there who didn't put their little ones in preschool until they were 4? My oldest is 3 and she's so smart, she loves people and would probably do amazing in preschool right now, but she isn't potty trained. We are working on it tentatively but she isn't rushing and I haven't felt like rushing her.

Lately I've been seeing all these 3 years olds starting preschool and I've felt so guilty! Did I drop the ball and let her down, or is it ok she isn't starting this fall? Thanks for any advice!