Ds is 20, dp's little one ten years younger. Not had much interaction long story but is it reasonable to expect ds to make an effort to spend time with dp's ds with us despite the age gap. Ds is behaving moodily about dp's son on occasion. He tries to make an effort but isn't very good with young kids. What is a reasonable expectation. I think being polite and frirendly for sure but the moodiness happened as I asked him to sit with us doing something suited to the little one's age. Was that fair and is ds being unreasonable or me?