Don't know how laid back on the rules the Freedom staff is going to be, but generally, this is what I've been told on the Enchantment.
Shorts are perfectly fine in the dining room for BREAKFAST AND LUNCH. Shorts are not allowed in the dining room for dinner. Jeans are ONLY ALLOWED on the first night and the last night, and generally they do not like to see jeans in the dining room. The reason they may make an exception for the first and last nights is because most people are waiting for their luggage the first night, and may have packed their evening attire on the last night.
On that note, here's a question. On the regular casual nights, can I get by with khakis and a golf polo shirt? Or should I wear a button down? On my previous 2 cruises, for the casual nights, I wore khakis and a button down that I got from Old Navy (not a fancy button down, but somewhat of a "dressy casual" look.
2007 - Majesty of the Seas (Bahamas)
2009 - Enchantment of the Seas (Western Caribbean)
2010 - Freedom of the Seas (Western Caribbean)
2013 - Golden Princess (Alaska, roundtrip from Seattle)