re: National Parks are too crowded

Mixed emotions here. I have driven & backpacked the National Parks for almost 60 years. Glad that so many have discovered the parks, but saddened that the kids & grandkids will never know the parks & even the backcountry as I did.
My trail days are over, so auto restricted, required reservations to drive Trail Ridge or Road to the Sun at really sad. Yes, go early, or late fermion before & after the rangers are on duty. Gonearleoer & later in the year.
Yes, can be be frustrating, but still worth the time & effort.