Banning rent seeking doesn't work. Christianity tried banning interest and it just causes non Christians to offer lending services which then results in xenophobia. Interest payments partially derive from the liquidity services provided by market participants (think long opening hours and storing products ahead of time). Money effectively becomes a public institution where people voluntarily give it value in the form of liquidity services. That public institution is then kept in private hands who lend out money and then get to market these liquidity services as if they provided the public institution themselves. Basically someone else does the work and you get to benefit.

The answer to this problem is a demurrage fee on cash. Banks can then compete by offering the ideal negative rate that is in proportion to the liquidity premium. Banks can then use this fee to pay for liquidity services.

Is anyone doing this? No and I don't think it will happen in the next 30 years.