Good ideas bring change and change is scary to a lot of people.
Quite a few people are afraid of good ideas, but everyone is scared to death of bad ideas - bad ideas make us look stupid or waste time or money or create some kind of disorder.
The problem though is that you can’t usually have a good idea without having to go through a few bad ones.
Business people, artists, sales people, engineers, developers - we all fail more than we succeed. We fail at selecting the right colour or typing the right code. We fail at an idea for a new sales strategy or the design of a new brand concept.
But one thing we have in common is we succeed far more often than people who have no ideas at all.