I see much of it has already been mentioned...

Apparently, there are way more vaccinations for kids being recommended these days (and it's not difficult to see it's partly for increasing profits just like they push unnecessary pills onto adults). They are also recommending vaccinations at incredibly young ages now compared to when we were all kids. More vaccinations and at very young ages means more cases of complications and harm.

This topic is inextricably related now, to the flood of migrants to both Europe and the US. For the most part, these people are not vaccinated for anything, which really increases the danger to any local population which is not vaccinated.

The CDC or NIH aren't about to admit that the return of Measles, Mumps, TB and the like are due to carriers taking up residence without being tested. They'd rather tell you somebody caught them while visiting a foreign country.

Anyway, I'm no health professional, but if it were my child, I'd wait until they were about four years old for all but the most vital vaxes, and even then I would research which ones were truly necessary compared to which ones kids are having terrible reactions.

I definitely wouldn't send my kids to public school these days, which removes one risk factor. Over the years, the more I see going on in the school systems, and the more I discover that many well-developed and well-adjusted kids also happen to have been home-schooled, the more I've come to value it.