if your baby was pulling herself up at 3.5 months into the sitting position this actually surprises me. If you have actually read pikler theory you would see that its actually common sense rather than being prompted by the old "can your baby sit yet:" I guess if you want your child to be sitting you will do this. I actually want my babies to crawl which stimulates left and right brain development.
if you have new research on sitting a baby on their bottoms that will stimulate crawling and left and right brain development while sitting i would read it. but as yet i have failed to come across any information on this topic. Child Development is my job and so far this theory has been the most infomative one for the respect of babies, learning at their own pace. If parents would like to sit them and put them in walkers that is up to the parents. I am only giving my personal experience and knowledge that i have and what is trying to be fostered with mums and babies, pre school, and early childhood centres across New Zealand.
crawling is an important step for children when they get to school as it helps promote left and right brain which is the key to reading and writing.
By saying my DD was starting to pull herself up at 3 1/2 months that is exactly what I meant. She was not capable of it at that age but that is when she started..at first reaching to try grab the bar and pull herself up, then accomplishing this and now getting herself up without the help of the bar.
I was putting my opinion out there and feel you are being very judgemental on how I am choosing to raise my child. I have never said that I don't think crawling is important. My daughter has plenty of time on her tummy and back and is always encourages when she gets a step closer to crawling. But my DD also hates to be lying down and has therefor learnt how to be comfortable on her own.
And as for wanting new information on "sitting a baby on their bottoms that will stimulate crawling". My DD comes far closer to crawling by leaning forward sitting up the she does from lying down. She hates being on her tummy and puts more effort into crying then trying to move. Each child is different, this is how she is learning and there is NOTHING wrong with that!
Just because you believe the pickler theory is "common sense" it is just a theory not solid fact, you do not need to be putting other mothers down just because they don't believe the same as you!