Here's the thing...teens who are attracted to someone will do what they want, with or without your permission. The ones not "allowed" to date will just do it behind their parents' backs.
My two oldest are 16 and in 10th grade, a boy and girl. Both were "going out" with people in 8th grade. Of course "going out" at that age means that everyone knows they're a couple, they text and call and sit together at lunch, and hang out with friends and engage in PDAs, maybe go to the movies or bowling or something, with other kids and/or parents. Basically, they're friends who make out (and you hope that's all they're doing).
Dating in 9th and 10th grade is pretty much the same, only with a little more freedom, because they don't drive yet. Our daughter has been going out with the same boy for a year and half. I worry that being with the same person for so long at this age is a bit too serious, but he's a great kid and we really couldn't ask for someone better for her, so there's no point in saying "we know your boyfriend is perfect, but break up with him and casually date some losers instead because we don't think a serious relationship is good at your age." They see each other at school and have the same circle of friends, they're on the robotics team together, he walks her home from school a few days a week, they have dinner at his house or out with his parents on Friday nights, and sometimes my husband will take them bowling or to the movies or out to play mini golf or something.
My son has a girlfriend who comes over after school on Fridays and they hang out here, and he goes to her house to hang out on Saturdays. Their relationship is actually too intense and unhealthy and will probably end soon, but I'm glad that we're able to talk openly about it.
Acknowledging that your kids are attracted to their peers and allowing those feelings and appropriate hanging out allow you the chance to get to know the people they like and give them honest feedback on what you see that is good or unhealthy about those relationships. My daughter used to be drawn to dramatic boys who were a bit of a mess, so we talked about that and luckily, she seems to be over that now. My son's current girlfriend actually attempted suicide last week and is in a psychiatric hospital (getting out tomorrow). I'd hate to think that if he weren't "allowed" to date that he would like this girl and see her without our knowledge and then not have someone to talk to about this very serious issue.
The real dates will start to happen when they or their boyfriends/girlfriends are old enough to drive. Until then it's group dates or being taken places by a parent.