The "just a warm body, any warm body!" mentality is what's so detrimental about the co-founder craze. Both financially (~50% of equity!) and in terms of more risk. It's a bad idea unless they're at least as talented and motivated as you (preferably in an area that complements you), and even then it's dangerous because you give up a lot of control.

If it's your idea and your vision, why not build the prototype, get some traction, then bring on a talented employee for 5% equity? Much better than 50% with someone you met at a "find a tech-cofounder" event