Girlfriend chased by dog

Hi

My girlfriend walks her dog everyday, one night they were being chased by one of her neighborhoods dog. That dog bit someone couple days ago. Shes said she would talk to the owner. I am really worried about her now and offering to walk with her every night for about 2 weeks to make sure, then decide upon the situation. She thinks we have schedule conflicts and didnt want my offer at the beginning. As her boyfriend, I will do whatever it take or however long to protect her. Even after the 2 weeks period and everything seems fine, I was still planning to walk with her maybe once or twice a week just in case. Her rely was that 2 weeks isnt enough. She wouldnt volunteer if it isnt planning to do it everyday.

This is my first time in a relationship. So I want to ask is 2 weeks not enough in this case and am I not qualified to be her boyfriend for not committing to everyday?