I feel as if some variant of this argument pops up constantly and it just comes down to definitions. Inflation in almost all major economies does not represent

I feel as if some variant of this argument pops up constantly and it just comes down to definitions. Inflation in almost all major economies does not represent the return rate at which your savings will maintain the same value from year to year. I don't know what it does track - it seems that often there are "corrections" for people lowering their standards (e.g. buying cheaper/less meat, watching movies at home instead of in the cinema, etc). To me that makes it kind of like some average of how much everyone is spending. I don't personally see any use in knowing that.