Yep. My twins had their first adjustment at 6 weeks.
After T1 forcep and T2 vacuum delivery and being squished up with a sibling in the womb - my boys have improved out of sight. Especially T2 who has a genetic condition.
There is no bone cracking and I would never use someone on my children that I had not seen myself!
No mention of vaccing but my chiro offers some general parenting advice - which is no different from anyone who has children or this forum for that matter
Like with most things take it or leave it!