Will the introduction of PIP affect all existing DLA claimants?
No. DLA ended for people who were aged 16 to 64 on 8 April 2013 (the day PIP was introduced) in England, Wales and Scotland. It is also ending for people who turn 16 after this date. It ended for those in Northern Ireland on 20 June 2016.
If you were born before 8 April 1948, and therefore already 65 or over before the 8 April 2013 you will not be affected by this change and you will continue to receive DLA.