I'm 22 now, I've been a SAHM since I was 19 and had my first. I'm glad I started young, because when the kids are gone off to their own lives I'll still feel young enough to go off and enjoy time with my hubby!
Most of my "mommy" friends are older than I am though, anywhere from 24 to 35. I think any age range is normal in today's society, many moms are starting much later than they used to. More power to them!
I know personally that I'm never going back to "work". I love this gig too much and don't want to sacrifice any time I can give to my kids. I joke with my husband that I'll just be the perpetual student
Glad to see such a diverse group on here!