Everyone has a different reaction, their own reaction to the idea of Counselling sessions conducted on line or by the phone.
For some it’s a turn off and they are not interested, as they consider something is “missing” or its harder to connect.
For some clients it is easier to have online Counselling, again for a variety of reasons. It may feel safer, easier, less pressured, or the technology gives them control
The only way to actually know, would be to have a session and then see what opinion you formed.