Electoral reform - unfortunate timing

I received a letter inviting me to participate (as a randomly selected citizen) on the Citizens' Assembly on Electoral Reform.
This would be a perfect opportunity to deepen my understanding of both democracy and people's priorities and build credibility for future engagements, while actually allowing me to contribute to meaningful social reform.
Unfortunately, with an ankle-biter at home to look after, I am just not available for such a time-intensive commitment.
I really appreciate how my wife knows how difficult and painful it is for me to let this go.