Basic questions about intimacy

Hi. I’m reading here that it seems like people can have sex if they want maybe even on a first date.

Here’s a question. Do people develop relationships? Is anyone fond of each other or become friends? Or fib? I’d love to meet more people like when I was younger and single and some maybe yeah I’d have sex with and some no. And some hell no. It just seems like the scene is..

Hard to find good a good matches or..
Fast sex and maybe no one cares about each other?

Not judging… but just hoping it might be more caring out there than what I’m reading. Thanks!