Because they fake mourning and no way will anyone suspect them of MURDER and want to execute them.
Get rid of the kids by forbidding masking and mocking maskers. Get rid of old folks. Get rid of all those with compromised immune systems. Get rid of everyone not your exact ilk. Kids, parents, relatives, "friends".
MOCK MASKING MOCK VACCINATING MOCK LIFE. What could it hurt? It will make huge brownie points with the evil doers. What's life worth compared to THAT?