Does Sunday School Provide a Solid Christian Foundation?
This really depends on your church.Some Sunday Schools provide excellent religious education for the children who attend them, but this isn't always the case. In fact, I'd go so far as to say that there's a real problem with Sunday Schools being little more than a glorified day care - in other words, they're just a place for the congregation's children to hang out, make some crafts, nibble on some cookies, and maybe listen to someone read a (very simplified) Bible story while their parents attend the actual church service.
Places like that don't teach much of anything, so by the time the children are old enough to join the church proper, they have no experience with sitting through a sermon, and only a very vague idea of what Christianity is about.
In my own case, I attended Sunday School at my parent's church. I remember the time being split between free time and Bible lessons, the latter being given using a pamplet of sorts. Although my memories of Sunday School are typically positive, I do remember being frustrated with the way the lessons didn't match what I read in the Bible.
Take the story of David and Goliath as an example. David's age, his reason for fighting the giant, and how the battle was won changed depending on whether you were reading the pamplet or the Bible.
In the Bible, this is a story about a teenager who stood up for his God. According to the pamplet, it was about a carefree toddler who learned that he could overcome anything if he just believed in himself. In other words, God had nothing to do with the story as it was presented in the pamplet.
This sort of "education" doesn't help someone learn how to live a Christian life, nor does it give them a good idea of who God is.
We need to do better.