I used to live in an apartment when I was a child. I didn't really like it because we had to be careful not to make a lot of noise.
Oh, I know. I just rented a condo at the beach, a sweet little self-contained unit in a building, all on one level. My son's first question was whether the neighbors would hear him fighting with his brother! LOL
I know. It's so annoying, especially for a child. Plus, you have to make sure that you don't break anything or mess anything up.
The Brits call apartments "flats". I like the sound of that much more! 
Yeah, I do too. It sounds cooler. I think apartments are good for those that are single, though.
I agree, if you are single and working, an apartment is great. Or, a "tenement" as they call it in Scotland. That's a pejorative term here in the States though! 
I've never heard of that term before. A lot of college students will get an apartment so they can be off-campus.
Yes, tenement is sort of a strange term. In the United States it has come to mean a run-down building. Not good! 
Oh no. That is definitely offensive to someone living in one.
Yes, in the United States. But not in the UK. "Tenement" originally just referred to tenancy, in other words, any accommodation that is rented. So, not offensive in that sense.