The usage of bitcoin is limited at a moment especially at physical places, so the spending is only limited to the online world, but I hope that things will change pretty soon.
You are right that usage of bitcoin is really limited at all and there are a lot of people that are holding out there bitcoins. So, the quantity of bitcoin in the ecosystem if very limited at all.
that is certainly true, and indeed the overall amount of the bitcoin is still mined was also very limited and it will be exhausted in the next few years. If that is indeed the case then the growth and the price of the bitcoin will be higher and probably will make those who commit halving will benefit larger than now.
Well there is still halving to come after 4 years if I'm not mistaken so we are near to get the maximum limit of bitcoins.
For sure the price of bitcoin is going to be high by that time. And by that time I'm going to spend my coins for real.