Some people may say that's how their church is or was. All ages attended my grandmother's Baptist church as did I when I was visiting her. It was really meant for adults, though, and it just "taught us to sit still" as did public school, long rides in the car, and watching tv - it was not really a lesson we needed. I know my grandmother loved her Baptist church and religion, but that's all I got out of it - an understanding of my grandmother.
The worship experience at my church no longer has a "Time for All Ages" as the entire service is designed to be as everybody-friendly as possible. Here's an example from this morning that I loved:
The service was about Gifts so we did the 12 Days of Christmas (today was the 11th day). Our minister asked for 12 volunteers. It took a few minutes to get 12 brave souls, but I was number 12 and a long-time member who has Alzheimer's (stage 3, I believe) was number 6. He decided to participate just as he decides he has to come to church every Sunday and fortunately we have a member who can transport him without any trouble. It was a wonderful experience that was enjoyed by every age and stage.