Sort of. Andy isn't physically present for a significant portion of the story, but his influence and memories are felt throughout Toy Story 4.
I'm not sure. It depends on the scriptwriters and the direction the story takes.
Yes, Andy is not in Toy Story 4. By this time, he has grown up and passed his toys on to other children.
No, Andy's dad is never shown or mentioned in the Toy Story movies.
Sure, Andy has a dad. But in the movies, the focus is more on Andy's relationship with his toys and his mom. The dad's presence is more in the background.
Maybe it's because Woody has always been there for Andy, providing comfort and companionship through thick and thin.
Andy gives his toys, including Woody and Buzz Lightyear, to a little girl named Bonnie at the end of Toy Story.
As far as the Toy Story storyline goes, there's no indication that Andy has a dad. The story centers around Andy's relationship with his toys and his mom. So, nope, no dad for Andy.
In the Toy Story franchise, Andy starts at around 6 and ages as the series progresses. In the first film, he's a young child full of imagination and love for his toys.
Andy is around 6 years old in the first Toy Story movie.
Andy was around 9 years old in Toy Story 2.