In 2012, Gage ranked #152 on the name popularity chart for the United States... so, that should explain to you a bit of just how growing in frequency it is.
Gage is a name that parents choose because they think that it's unique-- but, coincidentally, many other parents at the exact time also find it unique... unfortunately, the scenario above has proven disastrous for countless names before... Jessica, Amy, Isabella, Ethan, Jacob, Sophia, Noah Aiden... such a sad event, too.
Having said that, you could probably use it without worry if you only decide it to be a nickname. It may take some time to find, but even forenames such as Gabriel or Alexander could pull off said diminutive.
Good luck!
to many to count
It depends on how many people live in america.
7,000,000,000
Everyone
1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000;
9,385,223,451,562,982
Approximately 7 billion.
10000000
Most people in the world do really want to live in a clean enviorment.
Millions of people live in shanty towns with no water and the most little electricity.
Not including the USA, about 5.7 billion people.