In my opinion, hair is a nuisance.
And I find it somewhat bizarre that people will invest time effort and money titivating their head hair and then even more time effort and money removing hair from everywhere else.
So just in the interests of research, how hirsute or not are your lower nooks and crannies...And do you apply eggs and honey to these regions too.
I see hair as a visible display of my health. Balding is actually unnatural. It is just that society has accepted it as normal. Animals never lose hair unless they are malnourished, in an unnatural environment, or become sick. How come so many humans lose their hair? Especially for me, being in the prime of my life, my hair was thinning which was very surprising to me.
I don't actually pay that much money for hair care. In fact, I pay less for hair care than I did when I was using shampoo, conditioner, and hair styling products. You were speaking of hair transplants (I think). I would never get a hair transplant because that seems like a defeatist action instead of proactively nurturing your scalp back to good health. With a transplant you are masking the problem that you never fixed, and people who get hair transplants subject themselves to taking either minoxidil or finasteride pills--I forget which--every day to maintain the transplanted hair bundles. The pills have side effects that can create chemical imbalances and lower testosterone which are big no-nos for me.
It is funny that you bring up how hair could be flourishing on other parts of the body, and I hear people who are balding joke about this. It's obviously because they are applying things to their scalp that the rest of their body is not subject to, like harsh chemicals in shampoo that upset natural oil balance. Indigenous tribes don't use these commercial shampoos, and they have an abundance of hair even as senior citizens! Shampoo takes off oil which dries scalp so it overproduces oil requiring you to use shampoo again, and there you have the cycle.
For hair care, I rely on sunlight, eggwashing with adding honey once a week for a deeper nutrient boost, scalp massaging a few minutes day, helping blood flow to the scalp by working out and the massages, microneedling which is pretty easy to DIY, and I'm currently figuring out which natural oils to add. I add rosemary oil after I microneedle to moisturize the pricks the needles caused. Also proper nutrition from food is paramount