If you never shave your pubic hair it will just continuing growing and nothing bad will happen.
Pubic hair is a natural part of the body and does actually serve a function.
Some of the functions that pubic hair serves are protecting your skin from friction and irritation and trapping oils and sweats and potentially acts as a barrier against bacteria.
Although proper hygiene is still important regardless of whether you shave the pubic hair or not.
Shaving your pubic hair is a personal choice and has no major health impacts either way.
For woman the pubic hair also keeps the skin of the vulva warm and moisturized and protects the delicate skin from friction during sexual activity and keeps dust, dirt and germs away.
Both men and women can shave their pubic hair if they want too.
But not shaving the pubic hair won't cause any health issues or harm either.
If you do want to remove your pubic hair, then waxing would be a better option as shaving carriers a higher risk of ingrown hairs and cuts.