I’m in southern Carroll (Mt Airy) and can recommend it. Plenty of people here make that commute. Depending on what your daughter is used to, traffic wise, it may be something to adapt to. But honestly, if she’s going to live in the area for any length of time, I would avoid Montgomery - recently named “most diverse county in the nation.”. Absolutely tell her to avoid Montgomery Village.
I 100% agree with Workerbee - I lived just south of this person for almost 20 years in Western Howard County and can attest to great schools (for being in MD) and near zero crime. It’s a drive to get in to town, but well worth it as the benefits far outweigh the alternative. A very well established agent in the area is Ken Milner 410-336-1397.