29M met a 21F who seems genuinely nice is the age gap too big ?

I (29M) recently met a 21F. I wasn’t looking to date someone younger, it just kind of happened she’s genuinely nice and we click.

Here’s where I’m stuck: I’m not looking to play games anymore. I want a secure, committed relationship where both people try to make it work, even when it’s not perfect. I’ve dated older people before, and age hasn’t guaranteed maturity. For example, I dated a 33-year-old when I was 25, and she bailed over something really minor (I asked her to stop messing with my IV bag in the hospital because it was irritating me multiple times until I got a bit aggressive). That showed me age isn’t the magic factor.

But I can’t ignore that 21 is still really young. She basically just left her teens, and a lot of people at that age are still drifting and figuring themselves out. I also know maturity depends on the person, not the number, and I’ve met younger people who know exactly what they want and are more grounded than people my age.

For context, I’m not a “career man” with everything settled. Life feels messy, and I’m still figuring things out myself. What I want is someone who knows relationships aren’t fairytales, who understands humans are messy and impulsive, but who’s willing to stick through challenges rather than bail at the first inconvenience.

TL;DR:
I’m 29M, met a 21F I like. I want a secure, committed relationship, not games. Age doesn’t always determine maturity I’ve dated older people who bailed over minor things. Is 21 too young to expect stability, or is it all about the individual?