There is a danger in that. It will increase the quantity of votes casts but there’s no guarantee it will have any impact on the quality and might even make it worse.
People who are already so disengaged from local body politics they choose to not vote or simply don’t bother are hardly likely to take a more intelligent interest simply because they’re compelled to do something with a voting paper.
I’d prefer councils chosen by a minority of voluntary voters to those chosen by a majority voting under duress.
If we are truly free to vote then we must also be free to not vote should we choose to.