The cold sore example, of course, is not in the germ line, so your kids have to acquire the viruses for themselves.
If Lamarck was alive and well, we wouldn't have to protect our kids from sharp objects, electrical outlets and toxic cleaning materials.
GMAB
Nor would Jewish men still need to be circumcised...
This has been happening for something like 4000 years..
If it don't kill ya, it makes you stronger.