IMO, you should always date multiple people. Not have sex with multiple people but date. One guy might like hiking, one for museums, maybe one is a foodie. The one you want will be the one you share the most in common with, the one with values similar to yours. That's why you date them...to see who's right for you. You should be upfront with them from the start and they should be up front with you. If you don't like it...move along. It's not wasting time, it is getting to know someone better and having fun while doing so. Emotionally, it also gives you an opportunity to really evaluate how you feel about a person and how they feel about you. If they are throwing up red flags, then you aren't as concerned about bushing them, because you have other eggs in that basket.
It is also okay to be single and date one person at a time. If that's you...that's you.
This is lame, imo.
You dont need to date or talk to more than one person. Women do it because its convenient safe and easy. Men do it for more options at sex and now to protect themselves from getting played.
It should be pick one and go, instead its, ahhh I kinda like this person. But I kinda like this about this person, buttttt me and this person really vibe together.