Here's a thing about older men. When you're 26, a fit 46-year-old can be hot. But when you're 56, it's hard to think of any hot 76 year old. When I was about your age I met a very handsome, very fit military guy who was 25 years my senior. We had a fling but it never worked out (we were geographically challenged, he was not particularly available emotionally, plus DADT was in effect back then). I'm now a little older than he was when we met, we're still friends, and he is still in decent shape for a man in his mid-70s. But I'm glad we never made it as a couple because the difference in life stage is painfully obvious to me.

Even ignoring differences in life stage: it's one thing to pair up when you're both relatively healthy, it's another to be middle-aged and dealing with the considerable health problems of your geriatric partner. My husband, who is 6 years older than I am, has some health problems but I don't mind because we are in the same risk bracket (and I'm developing my own share of issues). However, if I was having to care for somebody who has severe health problems at the same time that I was trying to consolidate my career, I might have a little bit of resentment. More importantly, my husband and I are developmentally at the same stage (say, Erikson stage 7).

On a side note, that ex-military friend of mine has complained about being excluded by younger men when he goes to church (inclusive church with many LGBs). But I know that he is radiating a creeper vibe, even without intending to. I feel bad for him, but I also think he could have had any man he wanted when he was younger and now is paying the price for being too picky and too emotionally stunted.

In your case: you could plausibly have a good relationship with somebody in their 30s, but more than a 10-year age gap would create a lot of problems because you'd be in very different developmental stages.