Why does all new pop music sound the same?

I’m with @onhwy61 ...you could say that all genres of music sound the same, although, If you are a fan and follow certain genres you’d be able to pick out what makes it different. 

@lowrider57 you mention a current hit factory...how is it different from Motown or Stax, etc.? I'm 38 and tend to think that I listen a wide range of music but I'm sure when my 2 1/2 year old is a teen, he may think I'm a musical schmuck as well. 

It's also important to note that not all music is made for you. Why would I sit here and spend time railing against a Taylor Swift album? It's not for me...I'm sure T Swift isn't sitting somewhere with her 6 string saying to herself "hmmm...I bet dudes pushing 40 will love this song..." I can say the same for Country music...something I will never ever understand but I can appreciate that many people do. 

You may not like what 'the kids' are listening to these days but It's important to understand what they are listening to because it's their soundtrack. I do not specifically care for trap music, Migos, Drake, Lil' Uzi Vert, etc. but this is what a lot of teens/20's are listening to at the gym. If I want a chance at identifying with them and staying somewhat relevant you have to understand what they are listening to and where it's coming from...

I hope I never become an old guy waxing nostalgia about Kurt Cobain (and the like) to anyone who will listen...my worst nightmare... 

@chayro , lighten up...I wasn’t being serious about it being my worst nightmare...we’re debating the state of pop music...

@boxer12 , it's what you said. This CAN go both ways but I think it's important to take as much as we want to give. You are showing an interest in what your kids are listening to and what's important to them musically and in turn they are doing the same. There are correlations between the bands you've listed and many deviations which could occupy a lifetime of exploration.

A great way to introduce older bands is through covers... Phish does this well...sneakin' sally through the alley, VU- loaded, TH- remain in light, boogie on reggae women, etc. Jim James and Mark Lanegan have both released cover albums. Many of the current indie bands released the massive GD tribute produced by by The National.

Hearing Phish play Sneaking Sally, I dug further and found Robert Palmer (the Robert Palmer I grew up with was addicted to love and letting the world know that some like it hot, not the 70's sneakin' sally and Pressure Drop Palmer I came to love.) I then dug further and found Allen Toussaint, who wrote the song. He exposed me to the NOLA sound and I became a fan of Professor Longhair, the Meters, Dr. John, Lee Dorsey, etc...