This is a big part of the problem with the modern interpretation in Spain and nearby countries. It used to be that most folks lived close to their work, and could go home for lunch+siesta in-between split shifts. As commutes are increasingly common, this doesn't work at all.
Given generally low employment numbers and the widespread desire for a shorter, more productive workweek, one could hope we start being able to pay folks enough to just work one each of the split shifts, but we're obviously a ways away from that.
Similarly, the school day seems to have grown longer to keep kids busy during their parents workshifts. Where previously many kids could attend a local school in their own village, and walk home for lunch (as kids in rural France were still doing when I was a kid).