Dreams are parts of who you are. You cannot shake'em away from your mind. If it is something that you've always wanted to do, no one, and I repeat, NO ONE can change your way of thinking. If ever they do.. it would be because you were already weak-minded, therefore you're allowing yourself to be controlled by others.
Here's something to ease your pain; the life you live is so reality-filled, you would at least need to have dreams on the side or else all the world would be like robots blindly following orders without questioning what they're actually doing.
So dream, my friend, dream!