I too hate parties but I have taken every one of mine. You say you dont enjoy them but its more than your enjoyment its about socialising your child with people outside of your imidiate family and it is about her having fun so yes YABU if you dont take her (doesn't meant you have to go to everyone do every 2nd )
remember our children see so much more than we realise so for example you may feel you are doing nothing whilst she is at a party but she will see you are there for her and that is what she will remember reminds me of this poem
WHEN YOU THOUGHT I WASN'T LOOKING
When you thought I wasn't looking,
I saw you hang my first painting on the refrigerator,
and I wanted to paint another one.
When you thought I wasn't looking,
I saw you feed a stray cat,
and I thought it was good to be kind to animals.
When you thought I wasn't looking,
I saw you make my favorite cake for me,
and I knew that little things are special things.
When you thought I wasn't looking,
I heard you say a prayer,
and I believed there is a God I could always talk to.
When you thought I wasn't looking,
I felt you kiss me goodnight,
and I felt loved
When you thought I wasn't looking,
I saw tears come from your eyes,
and I learned that sometimes things hurt, but it's all right to cry.
When you thought I wasn't looking,
I saw that you cared,
and I wanted to be everything that I could be.
When you thought I wasn't looking,
I looked and,
wanted to say thanks
for all the things I saw when you thought I wasn't looking.
(author unknown)