Dear M.,
Yes, it is very normal for a three year old to behave just the way that your daughter did. They have to make up their minds about whether or not the new situation is as good as the one that they are used to. Day Care is just wonderful for children, and for the parents too. They need to be able to see a different part of the world than just
their immediate family and home and park and neighborhood.
I have run two day care centers and watched carefully about how the children adjusted and if it were truly the right thing for them, and over and over again, I have seen the children blossom and gain so much knowledge and many experiences that will enrich their lives from now on.
For one thing, they get acquainted with so many friends that they will love for the rest of their lives and enjoy other friends so much more because of this time with learning how to be a friend.
Secondly, they learn to be comfortable in a school atmosphere - and that is a big advantage - if you are not comfortable, then you will not learn - you may learn to be uncomfortable in public places if you do not get this type of 'away from Momma and Home time'. They gain a lot of confidence, and surely you realize how important self confidence will be to them in the future.
Also, they learn to 'pay attention and be respectful and trust a person called a teacher' - how wonderful a gift could you give your child that will help them all through their school years and beyond. If you do not pay attention and focus in school and feel comfortable and that you are in a safe place, then you will not be as successful as you can be.
I think those are pretty powerful reasons that children should go to preschool, day care, then are able to enter Kindergarten a veteran of school and making friends and know how to be respectful and converse with a teacher.
Sincerely, C. N.