Restrictive, or realistic? I think that depends on what the user aims for. I created 2 AI-companions on another platform, probably the most well-known and most visited one. In the description, it says "she likes wearing high heels and taking the bus", and her first message is "hi". Just "hi". After my first message, which is again "hi", she wants to sit on my lap! No, I'm not joking. The chat was like this. I created the character, and there isn't a single keyword in the description, message examples,.. nowhere anything that will direct the character act like that. The other character? Almost same. This isn't realistic. It doesn't fit to normal life. When using Erogen, you'll never see nonsense like this - unless the creator wants the character act especially this way. I don't know, tastes differ, but i find Erogen more realistic.