I wouldn't say disgusting at all. However, on a first date, where the girl doesn't know you, and your views on not paying, she could very easily write you off as inconsiderate.
You might find that even though there is a huge push for woman to be on the same ground as men (and why shouldn't they be?) You'll most always get bonus points for holding the door, paying for dinner during the date, and so on. Because despite equality, it's a generous thing to do. It's still very much a world that is, unfortunately, controlled by men. So at least pay for her dinner. You're not facing a issues like a glass ceiling or maternity leave in your future on the career path.
However, if you get money out to pay and she stops you and insists on paying for her own food, so be it.
I always play it safe. I'd rather put an extra $10-$20 down if it means a potential relationship.
And I have a girlfriend after my last date, so consider this is a post from a man who has had success in the dating scene.