Amazingly enough, that triple conjunction seems to be kind of protected and enhanced by the Moon/Venus Water trine, which is overlayed on the top of it. Does he have an unconditionally loving, supportive Mother looking after him?
There are some difficulties in the chart, with the Sun conjunct the IC and applying to a square with the angular Jupiter/Uranus conjunction. He may have intense emotional waves of ups and downs, that he has to learn to roll with. And there might be an undercurrent of chaos and emotional turbulence going on at home—so that is rough.
But that triple Capricorn conjunction is the midpoint of the Moon/Venus trine, so it sextiles both of them. And the Sun sextiles Saturn , exalted in Libra. So I feel that your grandson will endure and be stronger for it.