Your experience may well be true, but your experience of being a dan-level player (~top 5%? of OGS players) can be very different from that of a player at OP’s level, or @Atorrante 's level. To propose a mere speculation, perhaps lower-level players choose to play you to challenge themselves and thus want no handicap?
The point is, I think the OP is right that handicaps can help beginners learn the game and I think we should encourage him to request handicaps in his games. Even if he gets canceled, he can just create another challenge.