When to let family kiss baby

Abby • 27, wife- little girl born August 21, 2018. Little boy born November 7th, 2021

Hi guys! So I have a question that I can't seem to find the answer to.

When my girl was first born, we were very strict with the rules that you must wash your hands before holding baby, never when sick, and no kissing unless on the top of her head/feet.

My question is, when do people decide it's finally okay for family to kiss her? Like on the cheek? Is that just a personal choice? All the grandparents are dying to give her kisses and she's just turning 6 months old.

The only info I can find when I try to look up the answer to this is the rules as they pertain to newborns.

Here's my almost 6 month old (Thursday!!) because I'm obsessed with her cuteness. 💜💜💜