Something doesn’t seem right to me. A six year old boy weighs... what... 50 or 60 lbs? If that thing is only 20 feet in diameter I don’t think that’s enough helium to lift him. Maybe... but my hunch is no.
The way it’s floating and bobbing makes me wonder if it is empty.
At least... I hope it turns out he’s not in there. That’s the best outcome of this.
Where have you heard those dimensions? It looks big on TV, but there’s no perspective.
I hope he’s not really there too... but if he’s NOT in there? He’s in big trouble ;~)