>>As for Communion in hand...public health.The possible (unintentional) transmission of various diseases,some minor,some not so minor. <<
So instead it’s a “Communal Cup?” Even Barney says not to drink out of anyone else’s cup.
As for transmission of diseases, my husband is an EMHC at our parish which kneels and receives on the tongue. He received training how to distribute communion without touching a person’s lips. It sticks. All you have to do is take the host by one side and touch the other side to the tongue. It sticks there and the person distributing never spreads a germ.
As for kneeling, the majority of the people can kneel. If you can’t, it’s not any big deal. Everyone knows you can’t if you don’t. My daughter has a teacher with horrible RA. she doesn’t and no one thinks anything of her.