They don't do it for the sake of adventure, but because most of the times they don't have any more choices, out of poverty; because they are looking to reunite with a relative, maybe their father or mother who is already in the United States. 
Hawafanyi hivyo kwa sababu za kitalii, sababu kubwa ni kuwa hawana namna nyingine, ni umasikini, ni kwa sababu wanajaribu kuwatafuta ndugu zao ili waungane nao tena, yawezekana ni baba au mama zao ambao tayari wameshafika Marekani.