I honestly think retiring people early isn't a solution to unemployment, from my personal understanding, doing this can even help increase unemployment, because when you retire someone who is still strong enough to work, that person will likely get bored of staying ideal and might end up looking for some where else to work.
Creating more jobs will definitely look like the solution to unemployment but then, this is not something that can be left to the government alone to do, government can not cater for everyone in a country, we still have to cater for ourselves in one way or the other, it is the duty of the government to create a welcoming environment where businesses can strive, ones this is in place, capable people can set up their own businesses that can employ tens, some hundreds of people, by doing this, unemployment will be greatly cut down to its nearest minimum in the country.
Not only that, there are exceptional people with some incredible skills which are way above your average worker and as such it is in the best interest of a society to have those people working for as long as they can, now forcing them will be wrong but encouraging them by giving them more benefits and bigger pay is acceptable, so we cannot generalize and try to make everyone to retire as early as possible.
What is happening is that we are in an age of transition, while in the past new technologies created as many or even more jobs than those that were made obsolete now we are seeing the opposite, so governments, private companies and the population in general need to find a way to make the economy work despite all of this.