Not to discourage you Wrangler but some negative things I've seen personally from older apprentices is:
1) The have a hard time taking direction or even advice from younger employees or supervisors, even if they have years of experience on them.
2) Some older apprentices don't know there place. Meaning you’re still an apprentice. Which means you are the one to dig, go in the attic, crawl in the crawl space, pull the wire, ect.
As long as you are dedicated and strive to learn the trade I'm sure you'll do fine