LHR T1 Lounge?
We are flying Club Europe on BA from DUB to LHR arriving at T1 about 7:30 am. We are meeting our children flying UA to LHR arriving at T1, 4 hours later. One of us also is AA Platinum (Oneworld Sapphire). Can we use the BA lounge at T1? Also, can we meet our children at the gate? Thank you for your helps.