Yep. Walks and concerts. Without the doors locked and people screaming "what are you guys doing in there?" ; )
We were good friends for three years, dated for two and waited for five before we had kids. And still managed to have them before I turned 30. I wouldn't have done it any other way! Good for your kids.
I bet you'll be ready for the Grandma label easier than you think though.
I was 27 when we got married and we still waited 3 years to have kids (we didn't have quite the whirlwind the Bush's did, but we hadn't even known each other a year before we were married, and hadn't even been dating 3 months before we were engaged. We KNEW).
Having time together before the kids come is a good idea if it works that way. We are really hoping that's true with our boys, since they're both so young (and have school to finish).