I am at an age where the older generation, aunts and uncles won't be around much longer and I realise that once they go I will probably not really see my cousins ever again.
I am not sure any of us are that close as we all lived quite far apart growing up and my brother and me are kind of in the middle with either much older or much younger cousins on either side. We see each other at weddings, funerals etc but we are pretty much strangers to each other. On my Mums side we don't see and have never really seen those cousins at all as my mum is estranged from her family even though we lived nearer them and had cousins more in our age range there.
It doesn't really upset me but it is sad that in a couple decades there will likely be no ties at all between us and I already don't recognise cousins on my mums side and would walk past them in the street.