There’s still issues regarding the basic background.
A six-year old won’t be able to carry 2 days worth of prepared food and water let alone ten, with enough nutrition to last a journey across the desert where one would be easily spotted/killed by the slavers or many other perils.
Also at 6 years old, there is not enough mature mentality to formulate an escape, less an off world escape, without connections, by simply showing away everywhere while not being caught/exploited/kidnapped by... the Gangs? The Remnant?
Maybe a teenager could do the latter part, but no one could move in the desert with 10days worth burdening then down, on foot.