No, it is not true that guys are only friends with girls they are attracted to. Just like anyone else, guys can have genuine friendships with people of all genders, including girls, without any romantic or physical attraction being involved.
Friendships are built on various factors, such as shared interests, similar values, common experiences, and mutual respect. People can be friends simply because they enjoy each other's company, have fun together, and provide emotional support to one another.
While it is true that some friendships might eventually evolve into romantic relationships, this is not the case for every friendship between a guy and a girl. Many men can maintain platonic friendships with women and have no intention of turning those friendships into something romantic.
It's essential to avoid making sweeping generalizations about any gender's motivations for forming friendships. People are unique, and their reasons for forming and maintaining friendships can be complex and diverse. Friendships should be valued for the connections they bring, regardless of the gender of those involved.