You are entitled to your State pension if you work as an employee or civil servant or are self-employed. But the amount of that pension is modest. The aging population also means that it is under incredible strain.
Our pay-as-you-go scheme means that nobody saves for their own pension. The amounts deducted from your salary serve to pay existing pensions. Your own pension is therefore dependent on the next generations.
This means that building up a supplementary pension is essential.