if you dont trust your own family in your own home. maybe you should get a divorce and get your kids sent away to be adopted.(joke)

seems some are a little too paranoid in their own homes.
heres the thing though. with all the old school definition of paper wallet and the paranoid requirements of printed said paper wallet in complete privacy away from family.... what still remains is that you then have to hide said paper away from family. and put a hammer to it to stop family from checking your document history
and for the rest of your life, not keep the paperwallet at home.. because you dont trust family to not find it a day, week, month later laying around the house.

the only real advice, without the paranoid 'over-fearing' scare tactics is:
to not do it on someone elses device, EG in a public library.
to not make a single paper wallet with significant amounts on it

if a burglar was to break into your house. they are not going to spend hours trying to look on your PC for fingerprints of if you are a bitcoiner. it takes too long
burglars dont rummage through all your letters and paperwork. it takes too long
they are simply going to steal your wifes jewellery. or your car keys and be out your house in under 5 minutes

no burglar bothers to look at printer cache data on the printers chip. they have a crowbar, not a device with hacker tools.
no burglar bothers to spend months trying to brute force your PC password.

they are more then likely going to factory reset your PC without going into your files to avoid any 'trace my pc' software pinging their location. and then selling the PC to a pawn shop

the real world fear is not your coins being stolen. but your access to your device/wallet being taken where the coins end up 'burned' via lost keys