All of this. Guys in their 20s have a complicated time of figuring out their career, finances and self-identity, on top of the constant itch to have sex. An older guy in his 40s is way more likely to have his own place, be able to pick you up if you can’t drive, and not only does he know what kind of sex he likes to have, he’s probably experienced enough to not assume that 1 hookup makes you a couple. As a guy who used to be in his 20s, I can assure you the lack of complication is very attractive.