Things are more complicated than this.
As the country acquires a history of inflation, all the debits become more expensive. Things get worse the longer and the more intense that history becomes.
Japan is spending some trust capital for forgiving their poorest people's debit. Once it is gone, they will have to pay "interest" on the lack of trust, and guess what parcel of the population pays for most of that "interest"?
Besides, most of the benefits from a high inflation don't go into that "debit pardoning" effect. They don't go into the government as a hidden tax either. At the same time, all the costs go into people that have to carry some non interest-paying money, that is, poor people and small business.
Small businesses aren't exactly sitting on piles of cash either. They own or lease assets, and are often net debtors.
The reason small businesses arent doing great at the moment is due to economies of scale, and cost of land - not the loose fiscal policy.
This should explain why governments in America and the EU are under pressure by strong interest groups to avoid inflation at all costs, even though it would help the common people who are in debt and possibly the economy as a whole.
It sucks if you have liquid cash, and you are facing inflation. It's great if you are in debt.
Many Americans have a lot more debt then cash.