Redefining Session

Why have these folk gathered together on a Wednesday afternoon in October for a session in the Stromness Pier Art Centre?

Is it because:

a) they have no friends
b) the weather outside is inclement
c) they are tone deaf
d) they are in the wrong room
e) it is part of their Community Payback
f) it is pissan doon ootside (see b)
g) they are locked in
h) they know no different
i) they forgot to get back on their cruise liner
j) the option of donkey trekking in Woolworths was over-subscribed

Spoiled answers will be void. Employees of CreelHQ are illegible (?). Unusual terms and conditions apply.