My dad is 65 years old and still thinks he is immune to advertising, but he literally reads email ads and deal sites, and users those to inform his decisions. I

My dad is 65 years old and still thinks he is immune to advertising, but he literally reads email ads and deal sites, and users those to inform his decisions. I am pretty sure he thinks an ad has never convinced him to buy a product he didn't already want, therfore he is immune to it. If you define influence to be whatever you want, of course you can say you are not influenced by ads.