I loaned from my Dad when i was 19 and working for him at the time. The agreement was the amount would be taken from my check in increments, which in turn made me want to work more to stay on top of the money.
I haven't asked him for any loans since or anyone else for that matter, haven't needed to. Every friend family or even foe knows without an inkling of a doubt im one of the select few that always keeps their word, no matter what. Whether it relates to money or not.
Theres a spectrum where loaning money can do some good with the right intentions.
Something i take great pride in, and is part of being a real man, i think.