The biggest impediment to learning to light your subject is the inability to SEE with your own EYES the affect of light placement. A constant source allow you to see IMMEDIATELY as you move the light about the set, NEVER having taking a photograph until you are pleaseed with the PLACEMENT. Then after you see what pleases you, flash gives the exposure and DOF you need. ANY other use of lights is merely 'illuminating' the subject! Inanimate subjects are OK with trial and error shoot-and--chimp-and-adjust the lights. People get impatient and don't bother putting up with you again.
Sorry but this is overstated in the digital era where the actual effect of the light placement can be reviewed imstantly on a monitor or review screen. Seeing the light can be equally misleading because flash duration and shutter speed can change the balance of light to shadow.
i agree with both of you. But I still feel for a total beginner using continuous is a great starting point, especially since he already owns them. I chimp like crazy with my non-modeling-light strobes, and will even aim a shop light at them on occasion as a fake modeling light, but you gotta start somewhere.