I actually live in Germany; but Mamasource wouldn't accept my German 5-digit postal code. I do own a house in northern San Diego, so I used that postal code. My 9-year-old son was born in Germany and went to German kindergarten (preschool) for 3 years. The Germans still believe in letting kids be kids and don't do any academic stuff with the kids in preschool. The kids who will be starting first grade the next year get some extra "work" and learn to write their names. But German preschool is all about play, socialization, and getting along with others. It seems highly chaotic to those who are used to orderly schools. When German kids get to first grade, then they start learning the alphabet, how to read, etc. After 3 months in first grade, the kids can read fairly well. My son is a bright child who was "challenged" in preschool by learning German (I am fluent in German, but we speak English at home). Most European countries follow this model. My German friends are always shocked when I talk about how the US is pushing academics at earlier and earlier ages.
Now one would think that because German kids are spending ages 3-5 or 6 playing and not engaged in any academics, that they'd be way behind their US counterparts. That's not true at all. When the kids start first grade at ages 6-7 (my son was 6.5), they are developmentally ready to learn to read, write, do math, etc. My son is in 3rd grade in a local German school. He is actually ahead of his 3rd grade counterparts at the American school on the Army base where I work in math and reading skills (he reads in both German and English). His school day is shorter than at the US school, but they pack in more learning. The kids also have a lot of homework. By the time kids get to 8th grade in Germany, they're taking higher-level algebra, biology, chemistry, their 5th year of a foreign language (English), and physics.
All that said, I would recommend letting your daughter be a kid. Let her have her playtime and do some supplemental reading at home. I guarantee that she won't be behind her peers. As you can probably tell, I have trouble with the US system of pushing kids to achieve at earlier and earlier ages. Despite the "later start," my son and his friends are all happy, smart, well-adjusted kids.