Is it embarrassing to go to BSEP class as a E7 and try to raise your GT score with a bunch of privates just to go warrant?

Absolutely not. I just came out of a BSEP class IOT go Warrant. My embarrassment lies only within the cost of my own mediocrity. Those privates are not going to have a decision in whether or not I succeed or fail as a NCO/WO. So why place such weight/value/or whatever in the opinions of people that are in the same class as me?! Are they not in there to improve their shortcomings as well? Take it from someone who witnessed everyone from a PVT to a SFC in the class struggle and succeed, it'll be too late when that individual says its too late.

No, if anything it is admirable showing you want to improve your knowledge and willingness to succeed. My wife used to teach BSEP, and she would get that question with every class. Take the class and make yourself a better person for it. Don’t let your pride hold you back.

Absolutely not. It shows that you are trying to better yourself. It's one thing to preach to your subordinates to do it, but when they see you put your money where your mouth is they tend to realize it is not all talk.