This is actually a good idea, no interest loans have been used for years. Lets not void ourselves of ideas just because a political opponent uses it to gain votes.
There is no such thing as a free lunch. Somebody always pays. They just build the interest into the price. It's not rocket surgery.
This is the same kind of "good idea" as putting a moratorium on rent but still expecting landlords to pay their mortgages.
You are a VERY generous person... with OTHER PEOPLE'S money.