i doubt that this data is collected in an "individual" form, as in labeled with your name, but more that AI is categorizing incoming data and their relation to each other into "behavioral" or "interest" groups. Commercials try to reach target groups, which show a certain behavior or interest. Estimated age and income plays a big role in selection of a proper target group as well. Older people have pretty much all what they need and want already, whereas younger age groups might not have acquired those yet and still need them. Dependent on the product of course, most target groups address people between 25 and 45 - basically after graduation in their career-phase, where they still need a lot and their income is increasing more rapidly than later in their lives (which means one can easily sell them "buy now, pay later" options as well). Music is more easily sold to people aged 15-30 and golf equipment to the 50+ group - well, there are other reasons to address this golf-playing group like investment opportunities.
I know these are generalizations, but that is what an AI does with this data - it is labelling you based on the information you are providing - and if those are not matching target groups, you don't get interest based ads, but just those, which address the common public - like foodstuffs.