I don't think merely giving medicines (Finasteride-Minoxidil) is correct.
1. The patient has (most likely) lost hair starting at a very young age (not the age at which his predecessors lost hair).
That means, he has kick started his hairloss genes (which were in sleep mode since birth), by turning his Epigenome unhealthy.
Most likely, if you ask him, he will narrate life events preceding the start of his hairloss (change of residence, going to hostel/college, change in diet, water, air, stress levels, severe illness etc.).
Those are the epigenetic events that start the hairloss process.
Advise him to improve his lifestyle, take healthy supplements like GlyNac, NMN, Omega 3, Quercetin etc.
Start once a week microneedling accompanied by daily massage of Resveratrol Grapeseed extract serum into the scalp.
2. Start him on GHK Cu and TB 500 peptides intradermally in scalp.
That should suffice in slowing down/reversing his hairloss.
If you want, you can add the Minox/Finasteride combination alongside, but I don't think it will be necessary.
Once his prematurely activated genes of hairloss are quitened, then the area requiring transplant will be much less.
In my experience, once the patient notices improved hair growth without drugs/medicines, he will have a different outlook and you will be able to convince him to delay a hair transplant.
Regards,
Dr A