When you are putting up something whether you are betting something or nothing you can consider that gambling, anything that you put challenge can be considered gambling , this is what Wikipedia defined it, we are gambling one way or another whether you know it or not.
https://en.wikipedia.org/wiki/Gamblingand that is what OP means by this thread,that everything that we are not sure in our decision making it a Gamble by any chances and i totally support that.
with that i am a total gambler because most of my decision is based in my instinct and i dont use even science to consider before making.
I never refuse if called as the gambler because that is the fact and currently i never shy anymore why i did gamble even lately my family know my habit but the good thing is they says as long i can control myself during gambling then they can accept my habit and indeed with self admitted it can makes us slightly comfortable what have we done so far
actually OP does not particularly pointing in Gambling games but what he wanted to say is our daily living is based on gamble and no one is not a gambler by that way.