He and I are having a "safety" meeting this evening. Not sure what to recommend for IWB Glock 23 since he wears mostly gym shorts and such with no belt. Sometime cargo shorts, but sans belt.
Talk, talk, talk. The more time you spend with him, the less time he is on top of your daughter, getting her knocked up. If this gent doesn't know what a holster is, you can bet he doesn't know what a condom is either.