Yes, I anticipate that there will be. In England and Wales, because it was expected that people would not have to work on Sunday, as shops did not generally open on that day, there were specific contracts that allowed people to not to have to work on Sunday. In Scotland, there is no expectation that people would not have to work on Sunday. Anyone who works in a shop would be expected to work on Sunday if asked to. The types of contract in place in Scotland are different to those that were in place at the time of the 1994 Act and, a fortiori, the 1996 Act.
We do not want to get too confused about opting in and opting out. The effect of the measure will be that
everyone in Scotland who works on a Sunday but does not want to will have to give notice of that wish to their employer, who should then allow them not to work on Sunday. Again, that was not the case in England and Wales.