My sister (F26) wants a romantic relationship with a 73 year old man.

My sister met an older man at her job (she’s a receptionist, and he’s a client/member). He’s wealthy and has some obvious mommy issues. It started with small gestures, like him bringing her coffee, then taking her out to breakfast, and eventually giving her a weekly allowance of $240. Recently, he even bought her a brand-new 2025 Ford Bronco Sport.

She insists that their relationship isn’t transactional and swears she has never done anything sexual with him. People will say im being naive but I truly do believe her when she says this. However, she has admitted to developing feelings for him. She likes being taken care of and provided for, and she now finds him attractive. Long story short: she asked for my blessing to date him.

I’m just like… EW. I don’t mind age gaps, but an almost 50-year difference?? He has grandkids and is older than our dad. I just can’t get behind the idea of my sister being with him. She deserves someone closer to her age & someone she can actually build a future with.

I’d love to hear other people’s opinions. What should I do?

Edit: for people saying to mind my business, I’ve been trying! She constantly talks about this guy. Every conversation with her is asking for my advice/opinion. I’m exhausted. I’ve always supported their friendship and told her she can tell me anything. I think that’s why she felt comfortable telling me she developed feelings.

The point of this post was to ask how I should navigate her asking for my blessing. I told her she can do whatever she wants and what will make her happy. My only concern was that she’d get hurt or have regret in the end. I like that this guy has given her so much, I think it’s awesome! I’m so thankful she doesn’t rely on me for rides anymore. He does seem like a nice guy but of course I need to look out for my sister, especially if she’s putting all this weight on my opinion. It’s not as easy as just saying “yup, go for it!!!” when this does seem conditional/transactional. I seriously just don’t want her to get hurt. But as someone in the comments mentioned, this may need to be a mistake she makes on her own. Also, yes, the car is in her name.