When I worked downtown, I made it a habit to eat at all the local hipster places for lunch. Sure, it wasn’t always cheap however, I noticed an upside to it (aside from the often great food). A lot of women were doing the exact same thing as I was. They’d sit down next to me and we’d strike up a conversation. Yes, women eat alone too! Although, these weren’t always just women that worked nearby. The truth is, a fair number were from out of town, and quite lonely while looking for companionship in the city.
Your question may be answered right there and then. Normally this doesn't happen on your first try though so don't get discouraged. Wouldn't it be great if you didn't even have to ask where to meet older women, because that older woman may be wondering where to meet you! (In fact, while I was looking around online I found a lot more sites where the women are actually looking for younger men.)
As long as you’ve sparked feelings of attraction inside a woman, she will be open to giving you her phone number. One of the keys to meeting women is that you actually move things forward to the next level. For example: Conversation > Phone number, or Conversation > Kiss, or Kiss > Sex. Don’t ever wait for a women to suggest the next move. You’ve got to lead the way by believing in yourself and knowing that if you’re being confident around her, she is naturally going to be feeling attraction for you. The more confidence you allow yourself to feel, the more naturally attracted she will be to you.