Why does everyone rush to vaccinate too many times?

I was born in Ireland and we got vaccinated and turned out fine.  I never got chicken pox. Why do the doctors over here rush to give too many vaccinations before 2 yrs.  A babys little brain is not developed much until 2-3 yrs.
Why are they not spaced out better so the childs body can absorb this poison and process it through the liver.
I also think that kids get too many shots now compared to 18 when we were kids. No such a thing as autism in the 70s no one had that.

[AnnieBrooke]

It's possible to space out the baby's vaccinations.  I just asked my pediatrician to write the orders, and every two or three weeks my son and I would  just drop by the Nurse Treatment room and get him a shot.  I liked that method.  He didn't have any negative reactions, but if he had, at least we would have known which shot did it.

[heatherlynn22]

a lot of the vaccines are to help prevent a break out of some nasty diseases. such as mumps, measles, rubella, polio, hepatitis, menangitis (meningitis) (which can kill a child within 24 hours of infection) just to name a few. my boys have been vaccinated for everything and have been absolutely fine so far aside from the occasional cold.