Great questions Gord. I have found many people are both lacking in imagination and are risk avoidant - personally and organizationally - a combination that presents huge barriers to change. Sometimes its been helpful to name these - as some people operate at a pretty unconscious and unquestioning level. Good questions to ask ourselves too periodically!
I've found it helpful where possible to adopt a practice of 'experimenting' - trying something out with an open mind to see where Spirit takes it. To name the changes as an experiment, to ask others to keep an open mind & refrain from judging its success or failure, and to refrain from commenting at all about it for a specified period of time - then a fulsome discussion will be held to hear all views. This is a practice I learned from an esteemed church colleague several decades ago.
Personally, I love kids serving communion - its such a sacred time to share with them - from which all can learn.
Trying to find solutions that don't ever 'unsettle' anyone usually means nobody at all is well served or satisfied. Nevertheless, it's sadly the common practice in many (stagnant? dying?) communities of faith.