[strat61caster]

Why are you all assuming the old man can't drive and not that OP is overly picky?

First time driving someone's car I'd rather slip the clutch a bit instead of stalling in a precarious situation possibly causing an accident. And I'm pretty positive it wouldn't be pretty either, OP probably jerked the car around a bit when he first got in it too, this transmission is one of the least friendly units I've driven when it comes to smoothness (especially with the light low feedback clutch pedal and the drive by wire throttle).

Not to mention clutches are MEANT to be slipped, they are wear items and are designed to be replaced. Without seeing the video I won't start linking conflict resolution guides, I'd let it go and look forward to replacing the clutch in the car together as a project.
Edit: Unless of course it is a repeat thing, Dad doesn't improve and clearly needs help.

There are cars that get beat on mercilessly and have clutches live longer than 100k miles, like cars used for drivers ed or racing schools.

There's this weird stigma that an hour or two of smelling burning clutch is going to result in a black mark on the car's permanent record and $1,500 out of pocket when it's really just a day out of your weekend, some dirt under your fingernails, <$500 and some memories with a buddy or two.

Edit: for the record I've done everything OP listed at least once if not multiple times including dozens if not hundreds of stalls (I fucking stalled it pulling into my driveway last night in a moment of derp) and dozens of autox launches >5k rpm dumping the clutch, at 40k miles my car runs better than the day I got it.