Okay, I just… some people are really pissing me off about "oh you're going to regret that later on in your life." on everyone who gets a tattoo.

Here is the thing. How I look at things. When it comes to tattoo's, or any permanent body modification, there should be a lot of thinking going on. This is going to be something permanent on your body for the rest of your life. So, it's best not to get a tattoo on "impulse" because more likely than not you WILL regret it. Spend time thinking about it, and imagine it. Wait, and think. If you're still as passionate about about getting the tattoo a few months down along the road then there's a good chance its a tattoo you want. I myself have been talking about the tattoo's I want for about a year now. I'm pretty damn positive I want them still and they hold a deep meaning to me.
Also, your argument is invalid about how my tattoo's are going to look like one big blob when I get older.

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those tattoo's he had since he was younger and granted maybe his body doesn't look the best anymore. His tattoo's are still readable and the ink is still all together so you can stfu because you're not going to look attractive when you get old either because guess what…. YOU'RE OLD.

Also, I think it would feel a lot worse in 40 years living a life based off of what others think of me?

Honestly, I would feel horrible. This is my body, I can decorate it however much I want to decorate it.

When one looks into a good tattoo artist, looks thoroughly at their portfolio their work and you're smart about your modifications, then you can have tattoo's that last you pretty much a life time. Good tattoo's last. Bad tattoo's don't.