I'd get a meaningless tattoo if it felt right in the moment: eventually your body winds up like a canvas covered in memories. Some good, some bad: the story of your life as a human 
In most urban areas they aren't stereotyped; everyone and their granny has one these days. Just ink.
But its still something people do to be "trendy" in their circle, ya?
It's someone else's problem whether they regret tattoos or not - not a reason for anyone else to hate em, IMO. I know for a fact any I get I wont regret no matter how silly they are - because there was a time when I was happy and pumped full of adrenaline and living life how I wanted.. be it to fit in, to rebel, being drunk or in love - and that tattoo would remind me of that time.
I mean, if you're gonna compare it so closely to fashion or driving a suped up car, I would NEVER chose to drive the SAME car my whole life, or wear the SAME hat my whole life.
You should know better than most people that a business depends on profits to grow. Don't blame the employer for making a rational decision that reflects the business as a whole, no, blame human nature for making us so judgmental. There is more to tattoos than just ink on the skin.
Are you saying people who get tattoos are more vibrant, interesting characters who are committed to something than those who don't own one?
Yes, because following trends and wanting attention makes them all of the above if not one.
They don't do it for attention? I'm 100% sure everyone who gets tattoos does it for attention, especially those who get excessive amounts on skin that is exposed most of the time.
Am I going to get a tattoo and expect no attention from it? No. I'm going to show it if possible. It's basic human nature.
4 of my six tattoos are entirely covered by a tshirt or pants. You are making gross generalizations here and really looking like a judgmental prick. Tattooing isnt a new phenomena.. sure a lot of people are getting stupid tribal shit and whatnot but not everyone.
You probably call maori hipsters too.
I think that tattoos that are traditional are a bit different. The fact you're getting so defensive about it shows you think there is some truth to what he is saying. Really, every tattoo IS for attention, even if its for other reasons also. There's plenty of other things you can do to show you are in touch with your roots than to have a picture permanently on your body.