Honestly I think only watching modern movies is not "normal." Then again some of these kiddies would rather listen to Lady Gaga over ACDC.
The people I call "normal" are just folks that aren't a buncha nerds posting on Godzilla forums. Or critics. Or probably the folks that would see a movie from 1933.
People today have specific standards in movies. They're accustomed to certain standards in acting and special effects. These standards are much different from the standards from 1933. The average person, especially today, does not have the attention span for something like Kong '33. The movie is too long with out enough action sequences.
In a society where attention spans are getting shorter and multi-tasking skills are rising, people are going to watch movies that can hold their attentions. A movie from the 30s will not hold any normal person's attention today.