How to set up parental controls in Android Q 10:
Step 1: Swipe down notification panel from top of the screen twice and tap settings gear icon
Step 2: Tap Digital Wellbeing & parental controls
Here you can see Dashboard, Wind down, Do not disturb (DND), manage notifications and Parental controls.
Step 3: Scroll down up to end and tap Set up parental controls
Step 4: Tap Get started
Step 5: Select (Child or teen) / Parent or Follow on screen instructions.