^ Heh, research shows people form inflation expectations from their own personal grocery (or pizza) bundles, and do not include items they don't purchase:
We show that consumers rely on the prices changes of goods in their personal grocery bundles when forming expectations about aggregate inflation. Our analysis uses novel representative micro data that uniquely match individual expectations, detailed information about consumption bundles, and item-level prices. The data also reveal that the weights consumers assign to price changes depend on the frequency of purchase, rather than expenditure share, and that positive price changes loom larger than similar-sized negative price changes. Prices of goods offered in the same store but not purchased (any more) do not affect inflation expectations, nor do other dimensions such as the volatility of price changes.
The same appears to be true even for members of the Fed Open Market Committee with their own personal forecasts:
We present novel evidence showing that personal lifetime experiences significantly affect the inflation forecasts, voting behavior, tone of speeches, and federal funds target rate decisions of FOMC members. Our findings suggest that heterogeneous inflation experiences generate heterogeneity in the desired policies and the macroeconomic outlook of FOMC members. Personal experiences exert this influence even though FOMC members are highly educated individuals and receive extensive decision-support from professional staff.
https://eml.berkeley.edu/~ulrike/Papers/paper_DMOW.pdf
https://eml.berkeley.edu/~ulrike/Papers/FOMC_48.pdf