Forget what Harry said, what an awful advise!!
I've been in dozens of first dates and I have never gone to have dinner. It just doesnt make any sense to have dinner with a girl you barely know! duh!!
They think you just want to get them drunk? yeah, ok, so what?
When you have a first date with a woman you dont really know, you go to grab a drink, a coffee, and ice cream, an apetizer...in other words, something small and something you can finish in 15 minutes if you dont like your date. It makes perfect sense.
Besides, talking while eating...is not a pleasant experience when you dont know the other person.
I've never had any woman push me to get us dinner. Not on a first, second, or third date...never. Wtf?
If you dont want to give them the impression that you want to get em drunk and have sex with them (why not?), fine, dont set a date for 10:00 pm, meet her earlier so there is still light. This way the sex 'pressure' is a lot less, and it is more friendly if that is your style.
Your last five dates pushed for dinner?? then you're giving them the wrong impression and you're attracting gold diggers or some other women that just want a free meal and someone to entertain them. Fvck that.
Are you meeting them online...right...?
Keep searching.