Just seems to me that as a saver I never get a break in this economic system. I feel pressure to go into debt and take some crazy loans just not to be left behind.
I think my work experience is quite short though, just 6 years or so. Over longer period of time, since economy moves in cycles, there will be a cycle with higher interest rates (like 5-10 percent) which will again be good for savers. Waiting for this cycle to arrive :)
I recall the same complaints about low interest rates back in 2012, but the returns from, for example, the Vanguard LifeStrategy 80% Equity over the last 5 years were 16.07%, 9.16%, 8.00%, 10.84%, 17.04%. A bit better than a savings account. Of course, when there's another market crash the value will drop, but there you go.
Looking at the last 25(ish) years of UK data the base rates have tended to be above inflation, until the 2008 crisis.
But yes, inflation will slowly devalue your debt if the debt is a static amount, borrowing can be a good driver of growth, when managed well. And sitting on piles of currency is not good either - the currency is a medium of exchange, not a store of value, it's better to encourage the economy by encouraging investment over hoarding.
Further, deflationary currency values work yesterday over work today, helping people lock in value and higher wealth purely by being older entrants into the market.