Pets and baby's

Why why why do people try on their baby's stuff on their pets??????????????  I think it's gross I love pets yes but I don't think it's ok to put on your baby's outfit or blanket/swaddle on your pet even if you wash it pets hair gets stuck on fabric. People have germs and can get a new born sick and pets are dirty you bathe then sure but still have germs and I see pictures of people letting them sit on the baby's stuff like bassinet crib car seat. My cousin does this her baby was 3 months premature she was able to take him home last month and he's still on oxygen he's so not to be around all those germs I mean pets lick their buts and then lick the baby she puts baby on the floor and all her pets surround him 😡 
I have nothing against pets or pet lovers but there should be a line to pets and baby's