It’s anyone problem if you don’t save enough during your active years but if you manage to save money then inflation will not be your problem since you have your pension and at the same time savings money through your job salary.

You should consider that retired person usually spend less since they are already at the age which they are not active anymore on social gathering or any form of activities that requires heavy spending. Most of the time they are just buying daily necessities and spend time at home or vacation house. Inflation will only be a problem if you didn’t manage to break poverty during your active years.