I do not understand.
Wouldn't it be easier to just prepare a load of Potatoes in the morning or night before for during the day and then when you come home cook a big pot of rice and vegetables?
I'd actually find it harder to consistently get enough fruit - waiting for it to ripen etc.. too much fuss.
I would also note that switching starches for fruits isn't just a 'innocent' change, they're very different.. The fruits will require you to eat elevated amounts of calories, while on starches you can practice moderate calorie restriction ( which has been shown to improve bio markers) without running into macro and micro-nutrient lows...
You'd be better off consuming dry rolled oats as a majority of your calories than from dates for example. Although there's no need to do this.. as they're more dense in uncooked form.
It's up to you in the end. Though I think perhaps it's pretty more rational to go with what has been proven scientifically than go with some craze where all the long term followers seem to pop off early.