They will have their own healthcare, education and justice system, it will just be different from our own. It will be adapted for their living in the jungle. They’ve survived for millennia with their way of life.
For example, they will most likely birth squatting/sitting upright, which actually makes childbirth easier and quicker. We only lie down because doctors in the past were used to dealing with patients lying down in bed ill. They will also use plants and herbs from the jungle for their medicine, much like healers/cunning women from the medieval and early modern era. We only stopped doing this ourselves because Protestant men didn’t like women having so much power and accused them of witchcraft. They will also live communally and act in the best interest of the tribe, not individualistically like we do in the west. They would probably think we are very selfish, going to work and dumping our kids with strangers and hoarding wealth.
What good is literacy when you need to hunt and forage in the jungle? What’s the point of immunisation for diseases that don’t exist in your community? They would only need to be vaccinated if they did make contact with the outside world, and even then they would be wiped out by the common cold. I wouldn’t say that our justice system is anything to aspire to when you see that less than 2% of reported rapes end in a conviction.