I live in a west-Eu country with several well-defined language borders. Each time we cross a border (on holiday), the youtube ads change language. When I’m logged in. I don’t have a driver’s license, yet the most common ad I get is for second hand cars. I’m in a relationship, yet I regularly get ads for dating sites. I have a job, get ads for jobhunting advice. And the other day I got an add specifically for people born before my birth-year minus one.
YouTube’s ads are on the same level as Spotify’s nagging for their subscription: it’s meant to annoy users into buying their ad-free plan. They use real ads as a thin veneer.