I have a year old Timneh that was very well socialized by her breeder. She came to me very trusting and unafraid. I have tried very hard not to break that trust. Today she is still fearless and very trusting. She accepts toys readily. I will say that she chose me. At the breeder's there were 4 babies and I wanted the youngest. Well the youngest wanted nothing to do with me, but the oldest came to me and wanted to be my companion. So yes, each grey is different and the socialization they receive from the very beginning has a lot to do with everything. I did not meet my grey until I picked her up 3 hours away from my home. But I spoke to her breeder weekly and her routine was written down for me in detail by the breeder. She sat in her travel cage all the way home with me talking to her and with her whistling and chirping back. When we got home I did exactly as her breeder told me. To cuddle and love her for awhile before I put her in her cage. To this day Ana Grey is still a cuddle muffin with me. I hope your Yoshi remains the same for you; fearless and friendly to all.