Weren't the last regular users of Shippea Hill (or another station in that area, I can't remember) a couple of schoolchildren, which dwindled to one, then possibly went down to none at all? I seem to remember that was the only regular custom for some time.
There are plenty of school buses which only run a couple of times a day and must have stops which are barely used but which take them somewhat off the beaten track. Unless it would actually cause capacity issues (and obviously often it does) then I am all in favour of local trains using infrastructure that is already there to make stops for a handful of regular schoolkids/commuters/whomever. As above, many stations in the UK have fewer than one return passenger per term-time day, so it's definitely not so absurd.
