There are definitely plusses and minuses to being a product of this kind of environment. It can make you strong, but can also give you a lot of self-esteem issues. The desired effect is that the guy will fight back (which earns you cool points if you do it right), but if you aren't familiar with that kind of situation or come from an abusive background that can quickly spiral into unintended territory. What may have started out as mild shit talking turns more into confrontation and can escalate from hurt feelings to physical altercations. With most groups of guys, you are either in or out and it can really suck if you don't understand that kind of treatment. Not responding appropriately will basically lock you out of the group. There isn't an in-between area really and that can be hard to deal with if you are someone who wants to be included. As someone mentioned above, I think there is a lot of pressure regarding body issues too (not unlike women). We all have different genetics though and sometimes you just have to re-frame that kind of stuff in your mind.
I think men often times aren't taught how to communicate at all, we just kind of figure it out as we go. For better or worse. A lot of guys never learn to communicate their feelings, their desires, etc. Women often complain about being taught to communicate or act in certain ways from early ages due to how women "should" be perceived (being "lady-like"). I totally understand that frustration, but I think it at least provides some bearing one way or another. Even if they disagree completely with how society tells them to act or talk, at least there is some kind of structure to observe and makes changes from. Through female social circles they learn to communicate better and with more variety from when they are young and begin to make changes about how they act or want to be perceived.
Accepted by everyone you respect, guys and girls. Usually the people with the most experience, most fights, best techniques, etc. While we compare ourselves against other guys most of the time since that is who we are directly working with for the most part, most of us still want to be accepted by everyone. I don't think (at least for me) impressing the girls has anything to do with it. That's just immaturity in my eyes. I think the gym environment can really affect the desire to be respected though. In a laid back fitness gym its not as much of an issue. If you are training in a gym where everyone fights, it becomes much more of an issue because there are immediately expectations (I think everyone male or female probably feels this kind of pressure).
Depending on your background though I think there are a lot of guys who have overlapping issues with women in gym settings. For example, I have a friend that started doing Muay Thai and BJJ about two years ago. I really had to push him into it and eventually I realized he was just incredibly nervous about the whole thing. He was nervous about getting hit, nervous about not being accepted, nervous about doing exercises the right way, nervous about embarrassing himself, etc. Lol basically anything you can think of. He's a pretty introverted guy and hadn't really done any kind of exercise most of his life and had certainly never been in a fight. It took him a long time to grow comfortable (hahaha and I pushed him a lot to keep going), but eventually he used that nervous energy for positive things. He did extra workouts at home, extra bag work at home, etc. He got really good in a short amount of time and now isn't afraid to mix it up with anyone in the gym. He is still nervous about competing though. I think most people regardless of sport/performance get nervous about that though.
Hahaha that all ended up being a bit of rambling and potentially an incoherent mess. Overall I don't think guys have nearly as many fears, difficulties, drama, emotions, etc. coming into a gym compared to women, but I also think we are conditioned for it a little bit more. For me personally, I've never really felt nervous at a new gym or going into a fight. If anything, that's where I am most comfortable. Inversely, I can go to social settings that my gf is completely comfortable/fine in (dinner with new people, parties where we don't know people, basically places I am completely safe lol, etc.) and I'm a complete mess lol. We've just got strengths in different areas, and I think that's perfectly ok so long as we also keep working on our weaknesses.