It sounds like Yoshi is very well socialized! He sounds so sweet too. Not trying to burst your bubble or anything lol, but this is called the honeymoon stage, some last a while and some are short. Ecko was the sweetest, loving, brave little baby when we first brought him home, he would do anything and step up to anyone. Now that honeymoon stage is over for me lol, it lasted about 3 months for me haha. But yes every bird is different so you never know. Anyways, I hope to see some pics of your sweet Yoshi.