I COULD NEVER DO THAT!

“I could never do that!” I hear it all the time. Usually about my running or my diet. Recently it really got me thinking. Why do people say it so often? Then I realized that I too am guilty of saying it. I’ve said it no less than a gazillion times. So I made a list: Things “I could never do”… but did
Go vegan (see also- live without cheese and or bacon)
Enjoy running
Run a marathon (see also run a marathon as a vegan)
Give birth naturally with no drugs
Become a stay at home mom (both financially and the “doing” part)
Enjoy life without alcohol and cigarettes
Enjoy life (period.)
And then more thinking…I don’t think that “I could never do that” is what I really mean. What I'm really saying
I don’t want to do that
I am afraid of doing that
I don’t understand that
I don’t know how to do that
Help me do that
So now when I find myself saying “I could never do that” I hope to be able to identify what I am really saying. Am I afraid? (Most likely yes). Am I unwilling? (That too probably). How can I move from “never” to “maybe” to “let’s do this!”? I think the first step for me is to say “Why not?!” My current list of things “I could never do”... but am going to attempt anyway
Financial Freedom
Qualify for and run the Boston Marathon
Maintain a blog :-)
What has you saying “I could never do that?” and what do you really mean?