How much attention do you pay to your grammar while reading and writing?

Do you pay much attention to your grammar while you read and write?

Is grammar just something teachers — and adults in general — make a big deal about? Should grammar still be taught in schools? Isn’t there an app for that, anyway?

In “This Grammar Guru Will Solve the World’s Problems,” Katherine Rosman writes about Ellen Jovin and her efforts to bring her love of grammar to the sidewalks of New York City:

Ellen Jovin was settling in at a collapsible table she’d set up on the Upper West Side of Manhattan last month when two little boys of around