Should men be gentlemen towards both sexes or just ladies?

I guess it depends on his sexuality...

I live by the principle that you should be a good person to everybody until you're given a reason not to.

why

So you shouldn't treat women differently to men?

I wouldn't be helping another man with his coat unless I wasn't straight.

No. Of course there are exceptions, such as pregnant women, purely because their needs are gender-exclusive.

Of course. The pregnant and the elderly etc

But would you act gentlemanly to platonic female friends and male friends?

**** being a modern gentleman in this generation. Some women are awful and don't deserve it.

If she hits me I'll hit her back.
They don't deserve my gentleman attributes just for being a lady.

If I want to be nice and courteous I'll do it when I want regardless of gender

That would depend on the situation, the individual, the accepted definition of "gentlemanly" etc.
To use an example that's already been given, if my parents had friends over then I would help with coats, scarves and the like because of the situation. I wouldn't do it if we were at a restaurant, since we're not the hosting party. However, I wouldn't do it for my friends under any circumstances.

Would you only help with the ladies coats, or the men's too?

Such a shame. This thread had been relatively civil until you turned up.

Come out of your glasshouse and tell me what you disagree with.

Well, the OP of this thread is all about how positive behaviour changes when it's applied to people of different genders, ages ect. Nobody had used any expletives until you decided to, um, grace us with your presence. Certainly nobody before you had mentioned violence towards men OR women. It's a very ugly trait that you'd do well to discard.

I think it would be seen as slightly strange if I helped the men on with their coats. .