Hi gurus

This is the Post Sales Policy Illustration from AIA's portal:
https://docdro.id/a4RQNbl
It looks like the breakeven will only happen at the end of year 20. Appreciate if I could have your advice on these:
1) If the insured decides to surrender the policy at year 20, after what date should he surrender? The policy issue date is: 1-Mar-07. Does it mean he should only surrender the policy
after 1-Mar-27?
2) Should he then ignore the annual premium due in Feb 2027 (at year 20), and then surrender the policy
after 1-Mar-27?
3) Is year 20 the best time to surrender?
4) Insured has sufficient term coverage until age 65 for death/TPD. He also has hospitalization/DII but no CI insurance other than this AIA Prime Life. To be frank, we're not convinced on the need for CI since most of the costs will be covered by hospitalization insurance right?
5) There is some concern on his part that the term coverage will cease at 65, but by then there will be CPF payout to the beneficiaries upon death, so is it advisable to keep this for the TPD benefit beyond 65?
Any thoughts would be much appreciated. Thanks!