It is an odd term – "fashionably late." It is weird because it is not fashionable to be late, at all. Be it a dinner party where the host or hostess has worked for hours to prepare an extravagant meal or an appointment where the other person has blocked precious time to meet with someone, time that could be spent with someone else. In some cases, being late is such an epidemic that hosts plan for delayed starts to their events.
Well, let's clear the air – it is not fashionable. It is rude. It is true that sometimes we cannot help being late because of a traffic accident or an emergency, but chronic lateness says one of two things. It is either a) I have poor self-discipline and cannot pre-plan my actions so I can arrive on time, or b) I do not care to arrive on time, because other people's time does not matter to me.
If you find that being late is becoming your modus operandi, I encourage you to examine why that is so and make changes to be on time. Promptness is the hallmark of the gentleman. It goes without saying that the label of the prompt arriver carries a much better reputation than that of the habitually late. Being on time shows that you have it together and that you care.
A Scout is Courteous.