Not sure I count as having an opinion that matters, but the answer is yes, always.

Yes there is always room (there are ten BILLION people on Earth and most of them aren't even fully online yet)(America isn't the only country in the World, we just act like it), yes, it is always worth it..if only for the learning experience and yes, you should take all the previous responses with a grain of salt.

Yes, even mine. There will always be someone to turn you down, discourage you (actively or sneakily) there will always be an Edison, and you will always find folks in your way simply for the sheer h*k of it.

But if you really think there is something necessary in what you are attempting, then only opinion that truly matters is yours.

Don't let them stop you.