Grandparents favoring grandchildren?

I know it’s not abnormal for families to have ‘favourites’ (though I’m not condoning this). My problem is that my in laws blatantly favour their grandchildren from their daughter over their grandchildren from their son (my kids) and my kids are beginning to notice it.I completely appreciate that mothers are typically closer to their daughters but I have a great relationship with all of my in laws. My own mother died when my youngest (3f) was 7 months old. My dad sees them once every few weeks/months and that’s it. I’m estranged from the rest of my family. So my in laws are all my kids have, and we’re lucky in that my SIL is literally my best friend in the world and I love my PIL.But my issue is the blatant favouritism. Until last year, we lived 4+ hours away from my eldest being 3 (she’s 9 now). We moved closer to family purely so we could see more of them and have extra support. My in laws would visit us, and we them, regularly, and everything was great.Now that we’re home (20 minutes from PIL and 10 minutes from SIL), I’ve realised that my MIL especially prioritises SIL kids over ours. She visits them CONSTANTLY. SIL has her babysitting minimum 2-3 weekly. MIL CONSTANTLY buys them gifts. And my kids go without. My MIL has been to our house once in the last 2 months. She babysits rarely. We see them weekly, minimum, because I go to them. But then they gush about their other grandkids whenever we see them. If one of my kids tries to impress them with something, the response is, “XXX can now do XXXX too!”. MIL was there for her grandson’s first day at preschool but showed zero interest in my youngest’s first day at preschool (they’re the same age). These are just examples from the last fortnight.I love my in laws. I really do. They’re the only family I’ve got. But the reality of living closer has only highlighted to me (and my kids) just how much they favour SIL’s kids. How do I address this constructively? via /r/Parenting https://ift.tt/2M2doQ1