Traditions Becoming Law

We talked last week in our group about traditions becoming law... how things we do become habits and then become absolutes, and how we pass those things down to our kids without thinking about it. Some of the things we talked about were:
1. How we organize our worship services and church. For a hundred years the Church of Christ has had Sunday morning, Sunday night and Wednesday night services, without any real scriptural guidance to do so, but it somehow became law. What would it be like for the church to meet all day, fellowshipping, sharing, watching the children play and pray? We have no guidance for a church to even own a building. Our expectations for a worship service are based on our history less than how the Spirit might lead us.
2. We never use saltine crackers for communion, yet the OT is specific: You shall not make bread without salt. We never use real (alcoholic)wine for the cup, even though that was apparently the norm.
3. We don't let our little ones eat communion with us, even though the Passover (from which the meal arises) required it.
4. We don't communicate with each other in worship service. (Eyes to the front, no talking, no communicating). Why is that?

I'm not in the format of being overly critical of our past...it has brought me to the present. I'm just wondering about things we take for granted as the "right way" because we haven't thought it out. Anyone else have something to share on that?