Israeli citizens are blocking trucks with bouncy castles and protests, the IDF isn’t exactly pushing all that hard to let the trucks past the protesters.
Hundreds of trucks a day were needed before these attacks and the Israeli genocidal response. After the ICJ initial ruling said Israel had to get more aid into Gaza there has been less aid getting in.
Children are going to starve first because they were in the most precarious position compared to adults. There will be a balance point and when they get on the other side of that balance point the number of people dying from starvation is going to exponentially increase.