I am new here. My girl is 6 six years old now, recently I am searching for some parenting tips. This forums is helpful for me.
Also, I will share something what I got before.
Here are the steps of setting parental control for your computer. Maybe you knew these already.
Step 1. Choose Apple menu > System Preferences, then select Parental Controls.
Step 2. Click the lock icon to unlock it, then enter an administrator name and password.
Step 3. Select the account, to which you would like to add parental controls, If the user isnít in the list, click Add, then fill in the name, account, and password information to create a new user.