Birthday party thank you's?

I don't. Saying thank you when the gift is open is enough in my family.

I don't expect one, I am actually highly surprised when I get one. DS does send ones out most years to non-family members.

Yes I make sure I send them out within 2 weeks.

Yes, absolutely. Proper etiquette. You don't want to look ingrateful.

Yes. Here in the south it is definitely expected.

Yes, absolutely. Proper etiquette. You don't want to look ungrateful.

Agree.

I think that it's a choice personally. I live in the South and yes, thank you cards are a must. But, I am also aware of the numerous gifts at a party that children can get from adults and children. At certain ages, kids don't understand what thank you notes are for so sending one to a kid who's give your kid a pencil box that he got out of his closet that wasn't used because he didn't like it in the first place is a little ridiculous to me. Older kids need to be encouraged to do it on their own not forced.

I take a group shot of the party and use that as a thank you- you can have them made in to cards cheap at Walgreens-

Yes

Absolutely. They went out of their way to pick a gift for your child, so it's the proper thing to do. I have had my DD help with them since she turned 3.