Back in New Zealand we weren't allowed to take paying passengers for joyrides in microlights, but the school sure did plenty of "trial lessons" if you know what I mean
We also used to use our microlight on non-passenger commercial operations, in the beach town where we lived, we did some search and rescue operations with it when people got washed out to sea, and we also had a contract with the local radio station to fly over the beach and do a live surf report every morning.