As stated elsewhere, if these young ladies had their time management skills in good order, the rest of their lives would be more stable, profitable, and structured along mainstream lines.
One of the ironies of the Sugar Bowl is the way these two worlds collide: SDs have the money to play, precisely because they have cultivated responsible behaviours; SBs get up late, diddle around, and when they *do* keep a BCD appointment they go home that day with more $$ than their workaday besties take home in a week....
Having spent time and energy cultivating a meet-and-greet, I will allow a no-show or two, and "running late" excuses about half the time, because when it clicks I feel very well rewarded....Tonight's soft and lithe 22 y.o. hottie was a half hour late, but when she got into the back seat for a cuddle, long, freshly washed hair gliding over her perked-up nipples covered only by a sheer, raw silk top; long, tanned legs ending in the shortest of cutoffs, knees akimbo for my ease of access....I wouldn't want to be anywhere else!
Sometimes I bribe them with something from Starbuck's, that either melts or becomes lukewarm if they don't hurry on over....
I find that threatening to leave sets the wrong tone and has no impact, because they will blissfully carry on doing whatever was delaying them in the first place.
I have learned the need to be flexible with play-windows, and not project adult social conventions on these undisciplined youngsters....I threatened tonight's SB with a spanking, and got a big grin in return, clearly that's not the right motivating tool; As others have said, if you have to navigate tight scheduling windows the professionals are a better option (usually)