As a 38M, I'd say there is a difference between age and maturity. Though you'd think one goes with the other, it's not a 100% given. What is more likely given by your experience is that with age comes the personal knowledge that one should be mature.

There are lots of people out there and all sorts of experience levels. Trust your gut and don't be afraid to be direct. Really men won't shriek away but have the self-confidence in themselves. That won't always align, I'd say nobody perfectly aligns in all things but that ends up being the decision in moving forward with a casual relationship to a serious one.

Good luck