“Restrictions” menu item is missing in Settings > General

Ahmedoman wrote:

I can’t find the “Restriction”menu in General Setting.

iPhone X

I believe it is now called screen time.

Settings - screen time.

It is indeed done through Screen Time.

Use Screen Time to get insights about how you use your device - Apple Support

This may be what you are looking for.

Use parental controls on your child's iPhone, iPad, and iPod touch - Apple Support