Training the muscles to prepare for birth is essential and well worth it. Tearing is normal and heals faster than stitches.
Our first son took 24 hours, we learned our lesson, no more prenatal toxic vitamins ans simple herbs. The second child took a little over 1 hour, the 3rd child under 1 hour, both with no drugs and no pain pills after. We discovered it was all the doctor's doing to make the mother ill durring pregnancy, we don't get the first visit until 6 months pregnant and then I don't know why she bothers, we don't want any of their poisons or toxic test including their ultra sounds.
You either want the baby or you don't, you don't need a bunch of test to decide if the child is worth keeping or not. I believe in having the surgeon there but not all their drugs and pretesting.
Natural birth at home is better for baby and mom, but few women trust their husbands to deliver and good midwives are hard to come by. Amish husbands think nothing of delivering their children, it is natural.