Generally by 50 men have matured to being far more respectable, thoughtful and intimately generous. Not that younger men cannot harbor these traits, it's just not as common. Perfect example are two recent dates...
Date one Gentleman in his early 30's "You look good for your age you just need to hit a gym, babe."
Date two Gentleman in his late 50's "You are the most stunning woman I have ever seen."
Date two may have been lying but ultimately very sweet and thoughtful.
Older men are not usually inclined in being violent or aggressive. They are more polite usually.
Of course I do not believe in the terms all and every. Therefore I try to avoid declining based on age. Everyone deserve the chance to prove they are more than the sum