You're lucky if people in the physical sciences know how to restart their computer. Sure, they're experts in their fields, but actively avoid learning new technology unless someone twists their arm.

The fields that could benefit from robots the most are the least equipped in terms of money and requisite tech knowledge to use a robot. Instead, you're likely to see them used in for-profit labs and those aren't the ones that tend to do novel research. Well-funded biotech and pharmaceutical companies are likely to have robots, but many of those don't want to do discovery-stage research. They tend to buy discoveries from public university labs.