[RiseofAsia]

Adoption is like buying 2nd hand only. Already got expert (vet) to verify the health. What risk are u referring to that is not there compared to buying?

You believe the expert.
Some dogs may be ill treated or abandoned before and suffered trauma. Some dogs may have hidden health issues.

If not, you think how come the dog is abandoned? Provided you have deep pocket to burn or 爱心泛滥。