Claiming that I don't personally feel the need for a fully enclosed, solid steel cubicle to get changed in doesn't mean I'm happy to get naked in public. I feel that whilst the changing cubicle you find at a public swimming pool wouldn't prevent a determined actor from invading your privacy it provides adequate privacy for me.
Yes, servers at Google can read my email - I'm willing to accept the risk of a Googler committing a fireable offence and going through my emails.