As much as I can believe he would totally do this, he would not admit to this.

But it comes from a satire site.

https://chaser.com.au/business/elon-musk-removes-blocking-feature-so-he-can-finally-see-what-his-kids-post/

Update: So someone else mentioned this, and looks like changes are coming but the satire part was why Elon was doing it.

https://www.avclub.com/twitter-x-block-feature-update-elon-musk