Does econ mode really worth keeping on?

2012 honda civc
Live in a highly place

Ff there are times when you need to turn it off to climb a hill or something, then turn it off. You are not being graded on fuel economy.

Eco mode on most cars saves a little on fuel in city driving where there are frequent stops/starts and slowdowns/speedups. This comes with a slight impact on performance, which might not be noticeable for many people.

Turn off ECO whenever having to deal with hills or inclines. Your Civic gets damn good mileage anyway, simply leave it in NORMAL.

You would be wiser to drive in the sport mode so the tranny shifts at higher rpms and doesn't carbon up the motor.
All Honda motors have a common issue with the valves getting tight and the valves need adjusting every 60,000 miles.

Keep eco mode on for going down hill, and switch it off coming up hill

It is mainly for highway cruising… Not in town

Just enjoy driving, enjoy your life. Why would you waste your time on thinking about silly things like this.