I don't understand your point, nor what you are suggesting. Here is my controller:
public function upDateChildDetails(Request $request){
child::where('child_id', $request->child_id)
->update([
'childFirstName' => $request->childFirstName,
'childLastName' => $request->childLastName,
'grade' => $request->grade,
'staff' => $request->staff,
'parentFirstName' => $request->parentFirstName,
'parentLastName' => $request->parentLastName,
'parentOnePhone' => $request->parentOnePhone,
'parentTwoFirstName' => $request->parentTwoFirstName,
'parentTwoLastName' => $request->parentTwoLastName,
'parentTwoPhone' => $request->parentTwoPhone,
'guardianFirstName' => $request->guardianFirstName,
'guardianLastName' => $request->guardianLastName,
'guardianPhone' => $request->guardianPhone,
'status'=> $request->status,
'notes'=>$request->notes,
]);