I use firefox focus on mobile to erase my history everytime I close the browser.

So I am in a similar position as you in terms of getting the ad companies to just throw random guesses at me.

But here is what gets me. There is this new push by YouTube that let's you clearly label your videos just for kids.

If I am on YouTube and I am playing a video that clearly is made for only kids, why does YouTube show advertising that is targeted for adults?