Clothing Design - Repeating Patterns

Background Story

So just recently I got interested in clothing production, I’m aiming towards the more realistic style of clothing to be specific. I have noticed that there are a lot of repeating patterns in some clothing types, such as the same wrinkles, same belts, same ties, or other same accessories on the shirts or pants.

The Question

Does anyone have any idea where I would find such accessories for clothing design and do you think this is a good or a bad thing?

If anyone can actually send me a source or a link providing me with my answer, please do it privately by reaching out to me via the contact information listed on my profile, thank you.