Just that really, I just had a general chat with a few friends about work and salaries (not talking about our own salaries, just chatting in general). We are all in our late 20s, unmarried and childfree, so we were not discussing in terms of household incomes, just in terms of single people's income.
Much to my surprise, some of my friends did not consider a salary in the range of £60-70k (for one single person) to be very high, they though it was "alright". One of them said you "come on, you can barely afford to rent a place on your own with that income!" 
I was a bit surprised as my salary is well over 30% lower than that, and I considered myself quite fortunate and well-off! Granted, we are in London which is very expensive, but still..
AIBU to think my friends are a bit detached from reality if they think a salary of £60-70k is just "alright" for one person??