I hate this as well, I can totally relate. It makes me feel like I'm being treated like a little girl who doesn't know how to do anything for myself when it comes to men.
I went on a date a couple of years ago with some guy and he paid for a hotel and room service and it was all mega expensive because it was a 5 star. I was like saying over and over let me pay for something at least and he wouldn't. He refused to let me carry my own suitcase and I felt overwhelmed by it and it got to the point that I had to tell him "You're making me feel awkward" as were walking down a street with my leopard print suitcase and he handed it over. I felt so bad and I was cringing so badly. I didn't see that guy again cause it completely put me off him.

As for anyone else buying me stuff I appreciate it but feel like it could be better spent on someone else who needs it. :3