Really??? I think just the opposite here. When I was a kid the lake by my house froze solid every year before Christmas, and we skated on it until well into March. For many years now, though, it barely freezes over at all. When it does, it's just a thin crust, melts quickly. No one has been able to go onto the lake in winter for a long time. Our winters here now have long periods of above-freezing temps. I sure don't remember that as a kid!
Those who want to do something will find a way; those who don't will find an excuse.