All cryptocurrencies are experimental, but if no one uses them they will not mature. Is gmail still beta?
Also if Gmail lost all your email it would be bad, but you'd probably be ok. If ZCash causes you to lose a significant portion of your life saving, on the other hand...
That was my point, gmail was in beta for five years, but it wasn't in beta forever. Technology takes a long time to mature and it is hard to get to that level of maturity without having people use it for real things.
Do not put a significant potion of your life savings in ZCash.