She absolutely loves her Grandparents and rightly so! But this makes me confused about why she wouldn't want to take this seriously to protect them?
I'm sure they are in their 80s! If the family are anti vax, going to house parties, bars, salons, shops, restaurants and then visiting their grandparents, they are unnecessarily putting them at risk. Do you put someone you love at risk??
I make sure my actions don't put vulnerable family members at risk and all my friends are the same, even though most are vaccinated now, we all still act sensibly because you just don't know!!