Do you consider visiting a site and then leaving the site before looking at anything there rude? People can't change their mind? Putting something in a cart an

Do you consider visiting a site and then leaving the site before looking at anything there rude? People can't change their mind? Putting something in a cart and leaving it there should be inconsequential to the seller. The only thing it might affect is their analytics. By the way, I consider analyzing my site visits and other data about me to be much more rude than abandoning a cart, especially when most sites don't even tell me they're doing it.