I am not sure if the success per se is the issue, but today things are definitely harder for many people compared to, say, 50 years ago for people of the same age. The available options for you, at age 55, are less with regards to success in general. And then it depends a lot on one's life too; for instance, are they single or not, do they have kids or not, and so forth.
> It's a psychologically very difficult time.
That's true, though it depends on how one handles that. But I think it is also clear that there are fewer options available when you are somewhat old already. People at age, say 20 to 25, may not feel a problem when they are gamers. At age 55, it is much harder to reason as to why you may wish to invest many hours per day into games; it just is not that productive, for most people (excluding e. g. playing to have fun, but that still does not answer the question of producitivity; I exclude professional gamers here, as they can often make a living just from donations, twitch etc.. but most people are not like that. Some of these gamers soon hit the age range 50+ by the way, I do watch a few of them every now and then.)