I agree it's a bit much, more than necessary. But in the same light I've known plenty of unmarried men that got them done so they wouldn't have children. It's a personal choice.
I will say that at 23 I
knew I didn't want children. Now not only do I have 2 at home still, but my daughter is grown and married and we have 2 grandchildren. So ... I guess things change.

I wouldn't change that for the world.
I got neutered after my youngest son was born. For that first weekend and about a week after an ice pack is your best friend in the whole wide world.