What's a realistic way to meet a woman where the median age is well above you?

One that

1. Women are usually open to being approached at
2. Wouldn't require spending money going back to repeatedly (the odds of meeting someone in one go is extremely small)
3. Is not online
4. Is a place where you would find someone that sticks around/is looking for a relationship
What's a realistic way to meet a woman where the median age is well above you?
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