Kamala was much more fun when her books were just about a quirky teenage hero doing quirky teenage hero stuff. Silly low-level villains, school life, sneaking out of the house at nights, etc. Then they decided they needed to end the world ... and lock her up in an internment camp for a time ... and turn her mentor hero into a fascist ... and near-fatally injure her best friend ... and so on. Having her join the Avengers and just permanently upgrade the severity of the threats she had to be involved in helped run so much of her fun into the ground.>>122651404>>122651480
It isn't commented on very much any more, but her polymorph (and especially healing-) powers take a lot of energy out of her. Her earlier issues were showing that she'd be binge eating breakfast and snacks and the like after nights out as a hero. So she could do all the things you mentioned, but *technically* she wouldn't be able to hold those changes for extended periods of time without it exhausting her. It's also not clear how much explicit concentration the polymorph stuff takes - it's not clear she could just casually go throughout an entire day while maintaining relatively minor cosmetic changes.