Conflating free parking with a childhood core memory, a lake trip with your immigrant father, feels a little disingenuous to me. But I think you understand the core idea: by making something cheap or free, we incentivize the activity but we spend communal resources (tax dollars, or some rival good like space downtown, or space on a lake) to do so. But we as a society get to choose what to incentivize. Cars have externalities (traffic, the space they take up, pollution, their being required is expensive for working families) that other forms of transport don’t, so people are rethinking the various ways we incentivize driving.