OK for some but not for others?

I find this a bit odd.

1 Corinthians 8:4-13(NKJV)

4Therefore concerning the eating of things offered to idols, we know that an idol is nothing in the world, and that there is no other God but one. 

5For even if there are so-called gods, whether in heaven or on earth (as there are many gods and many lords), 

6yet for us there is one God, the Father, of whom are all things, and we for Him; and one Lord Jesus Christ, through whom are all things, and through whom we live.

7However, there is not in everyone that knowledge; for some, with consciousness of the idol, until now eat it as a thing offered to an idol; and their conscience, being weak, is defiled. 

8But food does not commend us to God; for neither if we eat are we the better, nor if we do not eat are we the worse.

9But beware lest somehow this liberty of yours become a stumbling block to those who are weak. 

10For if anyone sees you who have knowledge eating in an idol’s temple, will not the conscience of him who is weak be emboldened to eat those things offered to idols? 

11And because of your knowledge shall the weak brother perish, for whom Christ died? 

12But when you thus sin against the brethren, and wound their weak conscience, you sin against Christ. 

13Therefore, if food makes my brother stumble, I will never again eat meat, lest I make my brother stumble.

What I find odd is the concept that some things are OK for one person but not for another based on each person's spiritual maturity.  It would seem to me that something is either wrong or it isn't.  Here it's saying that eating the meat of idols is no big deal for someone with the spiritual maturity to realize that there is only one God, our God, and therefore who or whatever the meat was sacrificed to is not really a god so it is OK to eat the food. 

However for someone else who doesn't have that understanding, if it will bother their conscience, they shouldn't eat the meat.  It would be a sin for them to do it.

That just seems odd and is something I am going to have to ponder. 

Have a great weekend!