Thanks for posting in the Spotify Community, and welcome!
I moved your post from Chat to a relevant Help board, where it fits better.
One option that you might be interested in is the Premium Family subscription, which would allow you to set up Kids accounts for your children; that way, they’d have separate Spotify accounts, so their listening activity wouldn’t influence your music recommendations (e.g. Discover Weekly).
If this sounds of interest, you can read more about Spotify Kids here.
Alternatively, if you’d prefer to continue using your same Spotify account to play music for your children, the best way to stop kids music from influencing your music recommendations is by turning on Private Session when you play these songs for your kids.
Let me know if you have any other questions, and have a good day!
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Note: I'm not a Spotify employee.