When you bring up a new idea, other people's attitudes are generally positive.
You can feel this even before you bring up an idea because your town shows its open attitude with awards for ideas, public recognition of experiments, and strategic plans written to allow new projects and ideas to come up.
You're not alone, because connections throughout the community mean lots of people bring up ideas, and connect with each other to work on them.
You can try a small-scale version of your idea in an innovative environment with small-scale stores, co-working spaces and pop-up opportunities.
Lots of tiny experiments are always going on, and both successes and failures are expected and appreciated.