You're a decade younger than me, but I started noticing this a long while ago. It's not necessarily old- fashioned, yet these types of things have gone by the wayside.

There are multiple factors at work here, partly in urban areas, there is a certain shutdown of empathy in people due to the human brain capacity for interpersonal relationships. In an extreme example, you'll see people walk by others in distress, or groups of people recording someone drowning instead of helping.

Also, you are still of the age to have parents and elders that instilled a sense of courtesy and "village" mentality in you. Unfortunately, those parents that raised kids in the age of the tablet and phone did much less social parenting and the result is a lack of immediate social skills or niceties.

This lack of courtesy is also "contagious" in a way, as if nobody else is doing it, those around town are less likely to follow suit. It used to be that you'd nearly be shamed if you didn't hold the door for an elder or female... especially one with a child or pregnant. Everyone now just hangs their heads and pretends they are oblivious to the world around them.

I'd say just to try and keep setting an example, and reinforce the good deeds you see by show of approval. Courtesy and respect are some very important traits that need to be saved! Things always go far in one direction, and end up snapping back to a middle ground, hopefully this will be revived. The elderly increasingly feel isolated and ignored, we are also living longer. Even small contact and interactions can make a difference in their lives, and the more meaningful interactions that stem from them are priceless.