I say all the time that people really have to do what works for them. You can follow all the dating advice in the world from a variety of sources, but it all boils down to you have to do what works for you personally. I'm not a coffee drinker at all, so coffee dates are a waste to me. Sure, most coffee shops offer other beverages, but honestly, I live in a small community so coffee shops aren't a big think here anyway. We do have a Starbucks on our campus, but since I don't drink coffee, I rarely go there. Some others on this board have sworn off lunch dates because they have read or think that it promotes "friend zone". I personally like lunch dates because it gives you an easy out if it is not going well, but also gives you enough time to get to know the person and if it does go well, you can always step it up to drinks or dinner or whatever.
While I do think that tall girl seems to be moving very quickly, I can say that, at least from my point of view, the viable men on some of these OLD sites are few and far between so maybe she's just excited that she's met a seemingly normal one who is a good catch. You should still, obviously, have a talk with her, but my point is that maybe she isn't usually this all in so fast and maybe she doesn't realize she's doing it.
Just relax and enjoy.
Me 52, H53 Bomb drop 9/29/2014 Divorce from XH final 12/17/2014 Marriage #2 12/31/2019 5 adult (step)daughters (3 from XH's first marriage, 2 from current H's previous relationships) 6 grandkids