I'm from the US and will happen to be on holiday in London at time of the shows. I managed to get tix for me and the family to go on Sunday. My wife and I have been to numerous shows over the years but this will be the first U2 concert for my 9 yo daughter and 2nd for my 15 yo. Anyway, we are staying in London near Westminster next to Waterloo station. I have researched it and can't figure out if it is best to take the tube, the train or hire a car service. The train seems the most logical, but I do not want the family to have to wait a couple hours after the show to get on a train, but I don't know if it is really that bad. Twickenham looks like a very small station. I see you can buy train tickets for specific trains, but does that guarantee you will get train or is first come/first serve because the tickets also say anytime return?
Any insights/ suggestions are appreciated.