It's just a normal date, but you're trying to get a feel for the person to see if there is any chemistry for the first time.
I've had dates where the next day the lady ghosts me. I've had dates where the next day the lady says she wants to have my baby. I've had dates where we both kinda mutually think that a second date isn't in gonna happen.
The last few ladies in my life have been met on Tinder. Where else are you going to meet people? Work? Gonna be fun if there's a breakup. Gym? Doubt the pretty girl with the nice yoga pants wants people approaching her. For a long while I was a regular at a bar but I "only" made a load of friends there.
This is true, however, if their bathroom looks like that and they act like that's a completely normal way for a bathroom to look, you should probably be cautious at the very minimum.