Second, smartphone is spying satan compared to basic phones or feature phones.
Third, feature phone browser is enough when on-the-go.
Fourth, buy a tablet or PDA when you must review documents or do something business-related on the go.
Fifth, many Wi-Fi hotspots are for monetization and making money.
That's why smartphones will die in 10 years, we will start again to use basic phones and make street internet great again. For example free or paid internet shed and telephone shed. For example London is getting uglier (no phone sheds) due to mobile phone revolution. I suggest everyone if you want to join the protest switch to basic phone for 3 days.
People are now busy trying to make everything so much easier through technology, they want everything goes as fast as possible, and smartphones makes every works easier, so there is no reason why smartphones would die within 10 years? I can use basic phones for at least 3 days but I can't last a year without it. And I'm afraid that no one will join your protest because everyone loves innovations, except you?