The failure of the native Irish to properly understand the English legal system resulted in them accruing large debts resulting in them having to sell vast swathes of their lands or losing them as collateral when they failed to pay their debts.
As a result of the Irish people's inadequate understanding of the English law system, they accumulated substantial financial liabilities, which compelled them to sell large areas of their land or risk losing it as collateral in the event of default on their debts.