The first reason was medical data in case of emergency.
The second most used chips were for security reasons , access to buildings or restricted areas.
And a chip implant is currently more secure than anything in this world.
The most advance come with triple security so you still need a pass and a finger print or retina scan after it so it's next to imposible to duplicate.
Your phone can get stolen so easily it's ridiculous.
Wouldn't you feel better without having to worry about it?
I guess that you do have a point in the security of implants. Based on the information you've given, it appears to be much safer than traditional hardware wallets if used for sending/receiving Bitcoins.
While hardware wallets can get lost or even stolen, with implants you won't have to worry about that since it's right within your body. No robber would even imagine that you carry with your Bitcoin implant on your body, as it wouldn't be noticeable by them with their eyes that easily. Still, it would be painful to place the implant in your body, but if it would be worth it in the long term without no health implications, then it would be the real deal. Just my opinion.