In my view the level of home network security should be based on actual risk level, eg focusing on automated attacks rather than targeted attacks, and based on

In my view the level of home network security should be based on actual risk level, eg focusing on automated attacks rather than targeted attacks, and based on an evaluation of what data you may actually lose and could you back it up offline. Aiming for some kind of perceived 100% security will just make you give up a lot of convenience to mitigate risks that probably never realize or that don't actually matter that much.