I get all call logs from my wife and kids appearing on my phone,as do they too,can this be rectified so each phone only gets its calls on the log?

not if you share the same appleID in that case all things apple view you as 1 person

you also can't FaceTime each other I believe

get separate appleIDS and use family sharing Family Sharing - Apple

Hi

This is because you are sharing the same apple I'd your wife needs her own apple I'd

Kids over 13 can have own apple I'd.

Go to books download ios 11 user guide it.s Free

Read family sharing.

Cheers

Brian 🇬-1F1E7;