Unless you know the individuals who will actually handle the sefer torah (aka who will be the baal koreh, will the hagbah/gellilah know how to lift/tie) I’d be reluctant to share a sefer with others, even if you know they are erliche yidden. I’ve seen damage to a sefer torah caused by an inexperienced baal koreh who used a yad with too much pressure directly on the parchment scraping the ink.
