It sounds like you need to sit down and look at all your finances, esp pensions, and estimate when you both can think about retirement.
You say in your Op, that you told him unless you find out when you can draw your pension and then go on to say he has a private pension.
Private pensions can usually be drawn down from 55 - given that you don’t seem to be aware of that, suggests that not much retirement planning has been made. He maybe has a large enough pot to replace a reasonable amount of income for next few years.
At 60, I think retirement age is 66 (he can confirm on govt website) and I doubt any changes in age will affect those of 60+, so it’s likely he will get state pension at 66. I am assuming he has more than met the required 35yrs he needs to pay in? Does he have any final salary pensions from his earlier working life, the money purchase schemes were less prevalent in 80s?
I can see your point of view, but I can also see your DHs, we are late 50s, but with long commutes and difficult jobs. Whatever others say, working does get harder with age, my memory is not what it was, and I find it harder to bring facts to mind than when I was 30! I have also become a lot less tolerant of the BS that happens in most companies and of people that say plenty but do little - age has made me much more cynical.
We are looking to finish by 60, but we have been planning for that for many years, with both having ISA pots to supplement pensions. We too have a variety of private and company pensions - some of the latter will pay out to me at 60, you may have similar, worth looking at, as women's retirement age was 60 when we joined early schemes.
We also have had some windfalls - an inheritance, endowment policy and 2 share payouts. Most of it was ‘my’ money, but we have always shared and after a family holiday and a newer car for me, remainder went into joint point. There is no way I would tell DH he couldn’t benefit from it, but then he doesn’t have gambling tendencies, so I can understand your caution.
Our eldest has also just finished uni, youngest 20 but chosen not to go at moment. As pp said, if you are on lower income they get more in loans and other help. We won’t put off our retirement in case she decides to go.