Don't you have to? Have to? You do. You're right and so am I. If you're going to schlep over to London, you're going to have to book an afternoon tea.
Have to have cucumber sandwiches. Have to whisper in hushed tones and light giggles. Have to order a second pot of tea because good god how could one survive on one alone?!
It's a magical experience, watching the women who do this routine regularly, and pretending (just for a bit) that it might be you one day.