Do you mean would "saving for your retirement" be needed? Or were you specifically asking about pensions? In any case I don't think any basic income plan work

Do you mean would "saving for your retirement" be needed? Or were you specifically asking about pensions? In any case I don't think any basic income plan works if you imagine that everyone stops saving their earnings and relies on the basic income for their working years and retirement. It is called universal basic income after all and not universal "luxurious" income.