how Youtube collect Customer data

1. YouTube

2. Google Searches
How Youtube Collect customer Data
Geographical Location
Gender
History
Most Watched
Like/Dislike, Subscribe

3. What Do with Data
History
Based on customer Youtube searches find the preferences of the customers .
Gender
Based on the gender of the customer the video will be pop up the screen.
Example:- Male -Sports, Cars, Motovloging,Games etc.
Female-Dress, Beauty,Cooking,Gardening etc.

4. Most Watched
Based on Most Watched Videos the next recommendation will come.
Google Searches
Based On Google search topics the videos will be come to youtube
and Advertisement will popup on videos.
Geographical Location
location based videos , recipes, nearest places, location based advertisement
Example:- Shorts
Example:- In Kannada Language Advertisement will come

5. Like/Dislike, Subscribe
Based on Customer like and dislike and comments on videos will recommended
and based on subscribe of channel and views the videos will come.