I can see hair cloning being released in 5 years if they really put all their heart and mind into it. The investors' whip cracking on their back is essential too.
But I believe 5 years is too optimistic. 10 is a bit of lack of hope in our current science. 7-8 years is a nice deadline.
For the cure to be available for the common man, 10+ years. That is what I believe. It is all speculation, ofc.
Finasteride will still be a low cost cure for ages to come, especially for ppl with low income and young men who don't want to see their hair falling in their 20-30s.