Doesn't an age difference bother guys? I am 28 and I have a male coworker who is 21 who is interested in me?

I know I'm attractive not to toot my own horn or anything. The guy did say I look way younger than 28 which is something I get often. He's still interested in me. I'm just surprised. I wouldn't date a guy 7 years older than me personally 4 years is a max. I'll be frank I feel like he's too young for me and he's probably not mature enough mentally. I'm a serious girl and if I am going to date a man, I'd want something serious and thinking about marriage down the road. I don't see that with a 21 year old. I just see a young guy who is barely starting his life out and I feel like he doesn't realize that I'm not looking to just have fun. I could be judging a book by its cover but that's how I feel what are your thoughts? Also surprised he's still interested 😨

Doesn't an age difference bother guys? I am 28 and I have a male coworker who is 21 who is interested in me?
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