In the first month, only your mum and confinement nanny, if you have one, should enter your home. older folks will understand this as it is a tradition they are likely to know, so more likely to follow. With the current covid situation, you could probably tell the rest nicely that you will not be accepting visitors until baby is at least 3 months old, and even then depends on govt regulation and covid situation.
say NO to visitors 😉 whether it's covid or not, it's common sense not to disturb newborn and mummy on 1st month as both need to adapt and rest.