Similar experience to
@DCLane . Meetings to go to, a bit of admin to worry about.
And then, if it all goes wrong, a lot of hard decisions.
There is plenty of guidance from the government on responsibilities of a trustee. Read an ask questions. Be the awkward new one, because most of the old guard won't have kept up to date with new duties. And always a good idea to be vigilant and ask questions, being the new broom. Like is it OK to charge the charity for the donuts at the AGM?
But generally, you are there to make sure that the charity does what it is supposed to do. You are legally responsible, so don't take it lightly, but if there is a rogue element and you couldn't reasonably be expected to know, you should not be responsible for their actions. Might need insurance for that, but worth checking.