You are not living in the real world. There is no limit on gmail. For someone who has it for a decade or more, 20GB mail is realistic, since gmail always told

You are not living in the real world. There is no limit on gmail. For someone who has it for a decade or more, 20GB mail is realistic, since gmail always told you there is no need to delete anything, ever. As for 16GB phones, those are pretty normal; take a look at moto e5. Please don't tell me a 64GB phone is required for email. It also doesn't change the initial problem of what and how much should be cached by service workers.