We have 2 DCs. Eldest DS is 6.
SIL has 2 DCs, both boys, 7 and 9. We are currently visiting them.
SIL has a very different attitude to screens than us. We have one family tablet that DS is allowed to use for a limited amount of time each day if he has been good and completed all his reading books etc. We are careful about what games he plays etc. No TV in his bedroom and we don't have any games consoles, though we might look at getting a Wii or similar soon.
Both SIL's boys have had TVs in their bedroom since aged 3. They have two different games consoles and each has their own tablet. There are very few limits on screen time and they let them play games such as Fortnite.
Until now it hasn't been an issue as DS mostly oblivious. But now he's noticed the difference and is asking why he doesn't have X or is allowed to play Y etc.
How do you approach those questions with your DC? Especially when awkwardly asked in front of the relative? I'm trying to change the subject each time but it's not easy.