Kate Hudson finds it “hard” to talk about her son leaving home. The 43-year-old actress is still adjusting to life without her son 18-year-old son Ryder, who recently left home to start college. Kate shared: “It’s hard to even talk about. I’ll have a moment where I’ll just start crying because something will just hit me that he’s not here.” Despite this, the Hollywood star – who has Ryder with ex-husband Chris Robinson – is also feeling excited for her son. She explained: “He’s having a blast, he’s in the city, he’s like ready. And that makes me so excited. I’m so excited for his future. When …