Re: Kinship term help needed
I would say it depends on the relationship. If the father and his cousins are close or on good terms, then yes they can be considered “chachu” but if it’s the kind of relationship where it’s like “Oh I have a cousin that I’ve never met and have no attachment to”…I guess you could call them just uncle. That’s how I see it.
It sounds icky but think about it this way. In the previous generations, it was common for large age gaps, like 20, 30, even 40 years between kids (no i’m not exaggerating when I say this…my dad’s eldest sister was in her thirties and had kids by the time my dad’s youngest brother was born). So let’s say there are two brothers and…
Ok second try, let’s say I’m a guy and I have a cousin who’s 15 years younger than me (not a stretch by any means). I have a daughter. that cousin and my daughter get married. What would make it potentially VERY ICKY is if that cousin was a part of my daughter’s life and came around all the time and we were very close and she called him chachu and suddenly they like each other. (EWWWW!)
What would make it slightly less icky is if I never even met the cousin, just knew he existed but never had any interaction with him and somehow thru family their rishta is set.
you know what, i’m arleady getting confused just thinking about it, Im sure u can get the point. 
But it’s true, I actually have a first cousin who’s son I could have married (theoretically speaking) since he was about 5 years older than me. I was best friends wiht his sister who was a few month solder than me, so we’d joke that im her aunty whos younger than her..so im “eenty”…