> Cash now is worth more than cash later.
This is accurate, regarding preferences for optionality, and how our economy currently works. But I think it's worth questioning the expectation that giving up that optionality deserves compensation, whether morally or practically (resulting in compounding "money-on-money returns", usually at low risk if sufficiently diversified).
The Italian economist Silvio Gesell noted, that no other good besides currency works this way. Every other good with a use value (food, houses) tends to lose value over time (entropy being fundamental to the universe), and/or, to carry risk (a share of stock which represents unpredictable ROI). There is course an exception in land, which doesn't intrinsically depreciate, but whose value trends upwards thanks to location value (and which can be addressed separately via Georgist land tax).
Gesell proposed a "demurrage currency" [0], which gradually loses value as it is held: the idea being, rather than being entitled to a return, retaining high long-term optionality is actually a privilege that one should have to pay for, since the real-world value it represents is depreciating. And the incentive to invest (whether at high or low risk) instead becomes to break even (with the rate of demurrage tracking what we currently call the discount rate).
I have no idea if such a concept is practical in a trans-national, growth-dependent global economy (with deflationary crypto-currencies as a BATNA!); if anything, I'm fairly confident it's not. But it's at least worth thinking about: that it's not at all axiomatic that holders of value should be entitled to compensation for "forgoing consumption" (not only because the wealthy don't necessarily need such an incentive, but also because increased consumption can mean an increase in the velocity of money, and more total value created, per the multiplier effect, and the "hotel riddle" [1]).
[0] https://en.wikipedia.org/wiki/Silvio_Gesell#Economic_philoso...
[1] https://www.econlib.org/archives/2012/01/an_answer_to_a.html