In addition to the cross-border effects, as a voter in Wales, there is another reason why this is important to us. The Welsh government also want to bring in self-ID. If this passes in Scotland, we're likely to be next.
This makes this even more important to Welsh voters than English, but the cross-border effects will also affect England.
The Scottish government is interfering with the democratic process for the whole of the UK. On another thread about this bill there was a mention of meetings between the Scottish and UK governments to discuss whether the new Scottish GRC should be recognised on equal terms with the current version, so that people born in other parts of the UK could change their birth certificates using a Scottish GRC, without this going through the proper democratic process in the UK parliament.
The Scottish Parliament invited contributions from outside Scotland. The Scottish Parliament wants to change the laws for the whole of the UK. People from the rest of the UK have every right to take part in this.