I use to love and still do on occasions listening to people talk about their families and their interest and their holidays.
However I have experienced a lot the TALK AT YOU thing - and you realise it doesn't matter it's use there in fact it feel like it doesn't matter that there is anyone there at all - I find I walk away from those conversations feeling slightly used and very insignificant.
Our family is terrible for it as well. MIL turns everything back to her 30 + years of package holidays or day trips - FIL does it with every food going on about meal's her eaten before I was born. It leaves the impression what every we do is inferior to their past experiences which we have no part of.
Our marriage and first pg turned out to be all about them - and about a childhood friend of DH wife - who unfortunately had her last child few month before our first.
That has gotten better mainly as friend has no use for them anymore - doesn't need free labour from FIL or free babysitting form MIL so they don't see them. That has meant more interests in their GC - but we can never talk about places or thing we've done with DC as it a cue for them to shoe horn their trips in.
Since DN was born my own family is just as bad- limited interest in me but that's not unusual - everything is DN. When do ask questions it's often not a real interest but an opening to talk about DN. It can be surprisingly upsetting.
Plus as children are older wanting to us what they've done which I and usually DH are interested in GP but in like it a competition with their "things" which I've heard before - or when DC start to try and tell GP they pull same tricks with conversations they do with us.
My mother was only interested in pfb getting an award when it made the papers - I've seen DH face drop in phone call from MIL when we'd just finished an important event as a family and his mother rang he though it was to see how it went - no she'd only rung to talk about their weekly walk which she proceeded too even after DH tried to tell her about the event.
I think it the near constant one sided nature of the "conversions" that so upsetting. This is probably very long - but therapeutic - YANBU.