Yes. People have returned to the town closest to the affected power station (Daiichi) in 2019.
Decommissioning is budgeted for in the cost of power to the public*. The workers all have jobs-for-life anyway, and there's a new industry for even more jobs





It was built to withstand a certain level of disaster**. They suffered no damage from the "earth quack" despite ground acceleration being more than 20% over maximum design specs, but the tsunami was greater than predictions. As a failure, it was reasonably successful.
I'm fine with it -- live near nuclear power stations already. As a disaster, the ****ushima event has been relatively benign



*Tepco is a private company and is paying the bulk of the decommissioning costs, which will be completed in under 13 years. (Just found the figure)
**upgrade work and evaluations were going on, based on earthquake and tsunami data from the region covering the past 900 years. This was literally a once-in-a-millenium event.