Upper Lip Bleaching/Hair Removal for Tween Girl

My daughter (almost 13) has noticed the hair on her upper lip is getting darker and would like to do something about it. The main options I can think of are bleaching, chemical removal like Nair, or waxing. I’m taking a “your body hair, your choice” approach with her, within reason. I have virtually no skills in the beauty arts so I need some guidance. I have always had fair, fine hair so dealing with dark facial hair was never an issue for me. She is darker with thicker hair like her father’s family. I asked my sister-in-laws and they were helpful, but my daughter also has very sensitive skin and they do not. Does anyone have any suggestions for beginner-friendly products that might work with sensitive skin? I appreciate any advice. Thank you!

Update: Thank you for all the input! I don’t think laser hair removal is a good option right now, but it definitely might be something to explore once she’s a little older and is done with puberty. I will talk to her about her options and help her weigh the pros and cons. I appreciate you all!