Guys, Are men naturally protective of women?

There is this guy I work with. We sometimes hang out with our other coworkers and one time I tripped and fell in front of him and he showed genuine concern. I thought he would have started laughing (I was laughing myself) but he kept saying, "Oh my God! Are you okay? Are you hurt?" And after that, he walked right beside me. The same day, we were hanging outside with our other coworkers and he noticed I was cold and offered to get me a blanket or a jacket. I declined because he already went inside to get me a towel to sit on (I was wearing a dress) so I didn't want to disturb him anymore. But later, he noticed I was still cold and made us all go inside. Are men just naturally protective of women?

Guys, Are men naturally protective of women?
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