Friends or relatives, depends on how much I value & trust them over my gears. If I know them well & trust their sense of responsibilty & competence, I do not have the slightest hesitation to lend the gears to them, & I dont need to know why or what they need them for. If casual friends, 'false' friends aka parasites/sponges/cheapos, pure & simple answer is NO. Its the same for lending money or other valuables/precious possessions. Real friends would know the limits & probably the answer even before asking
To me cameras are but just equipments that are meant to be used & can be easily replaced, but true friends are hard to find & may never be replaced.