DS is 6 months and it seems like lately his favorite toy and object and interest is paper. He loves to crinkle it and, as everything, put it in his mouth. He isn't on solids yet and not really eating anything, so I am pretty sure he doesn't actually ingest any of it. But I suppose it's not a good idea to get him started on a bad habit, because soon enough he will be eating it. That and the ink and any binders or glue in there would concern me. Even still....I think it's impossible to keep all paper out of his mouth.
How dangerous or harmful is it really? Do you try to keep any and all paper away from your baby or does he/she end up playing with / chewing on / eating some anyway?