@AlexAloha 

You could refer to this guide to configure the parental control, add all users and block the site for them.

  @QRene 

The parental control feature is not convenient since we have to access it via the Mob app rather than LT/Desktop. Also, I couldn't find the option like how to disable or deactivate the configuration of parental control setup which I made via the Mob app. It says connect via Wi-Fi connectivity though I am already in the same wi-fi network and asking for cancel or check Wi-Fi settings. Looks like some bug with the Tether app because the moment to save after disabling the radio button of <son>, it takes me to the feedback page to generate the report and fwd to the MI/Xioami website. Looks like the tether App is not fully tested on android mob phones

Can someone pls guide how to disable the <Parental Control> all together? 

  @GSUCD-evergreen 

Hi, are you able to delete the parental control profile directly? It would help a lot if you could share with us some screenshots.