bypassing time restrictions

This would help --> Set up parental controls with Family Sharing on iPhone

With Family Sharing, the organizer can set up parental controls for children in the Family Sharing group. You can use Screen Time to manage how your children use their Apple devices. You can also turn on Ask to Buy, so children must receive approval for purchases or free downloads.

Learn about types of Family Sharing members.

cmk1231 wrote:

currently the child can by pass time restrictions - which makes it pointless to have

They can't if you have set restrictions correctly.

You may --> Set up Screen Time for a family member on iPhone