Consultants often don't know about opting-out, or are incentivized to not mention it.
We get this question a lot! There are two possibilities here:
- The group or consultant didn’t have the knowledge to educate you in this area.
- The group/consultant makes money when you purchase from their partner lab, and directing you away from that lab would result in loss of revenue for them.
Also, in every case we’ve seen, their suggested sourcing is too expensive to really make opting out “work” as well as it should. Sometimes it’s hard to stay impartial as a consultant or group, and not everyone stays on top of every subject.