You have to pay for a senior rail card to get a discount on travel though it is well worth the money if you have to travel regularly.
I think I would find it impossible to live on £167 a week, with gas and electricity, home maintenance, renewal of electrical equipment, hobbies and entertainment, clothes, food, phone bills, home insurance, etc, etc. My pensions are more than £167 p.w. but they aren't great. Fortunately my husband has a very good pension - otherwise life would be very difficult.
If people have to scrimp and save - not have day trips, occasional meals out, an annual holiday, little treats for oneself and gifts for close friends and relatives, etc, etc, I would say that is existing rather than living. I don't think it's acceptable for anyone to just exist from day to day worrying about money and with nothing to look forward to - whether pensioners or anyone else.