I sure it’s Spez.

Already chose a country?

It’s a hard life being a democrat. (I don’t mean the party.)

Then I have misunderstood this question. You are right, if you install LFS you get to better know your system and how it works. But as a daily driver, it is really a no-go.

Don’t do it. It takes too long and there are reasons why there are distros. Maybe Gentoo is a good alternative?