Because:
-They already have a multitude of friends and guys offering them for a ride anywhere at any time.
-Attractive people/foids look forward to the next day. Tomorrow is unironically an exciting prospect.
-They had a good sleep the night before from getting pumped deep by Chad.
-They receive friendship, smiles, jokes and conversation where people try to impress them at work. Who'd want to miss that?
-They have a date after work, being taken out for dinner by Chad.