First, let me welcome you to the forum! You have done well to prepare yourself for any encounter you may have if you have been reading as you describe. Not only is open carry permissible in Colorado, it is your flat-out right! Anybody wants to question that can check it out with the Colorado Constitution, Article 2, sections 3 and 13 in particular.
Armed with a certain confidence and understanding of your responsibilities as a handgun owner, you should find that open carry doesn't raise all that much concern by the public or law enforcement. If you should have any hassle, just let us know. Perhaps we can get a bunch of the folks here to drop by your area and hold a picnic or meet-up to drive home the point.
The only thing that might be an issue is your age, but much of how you are viewed will be more on your comportment than your age. Carry with confidence, behave in a manner that folks find friendly and open, and you shouldn't have any troubles at all.
Again, welcome to our forum.