I don't really get his reasoning about her not staying with him cause it's dangerous. Normally when manga guys say that, it's like "I'm a single guy, what if I go crazy with lust and rape you?!" but here he's like "there are times when I can't come home, you better stay with a woman instead". So is he like saying, it's dangerous for her to be home alone, cause like, someone could break in and attack her? If so, how does staying with a woman help? She probably won't be there all the time either, and even if she were, she'd be less likely to be able to protect her from a home invader. Is there a translation issue or am I missing something?