My own experience
As a glasses wearer with a prescription of over -6.5, I know better than anyone how limiting a high prescription can be. The foundation for this substantial prescription was laid in my youth, during my growth. This still means I wear custom-made glasses for everything every day. Regular glasses, contact lenses for sports, prescription sunglasses, and even custom-made diving goggles.
Glasses for Tara?
Our daughter Tara was also fitted with glasses at a very young age. Initially, with plus lenses. The prediction was that she would also switch to minus lenses later in life. This proved to be correct. Within two years, she had reached a prescription of -2.5. A process that seems to be unstoppable in growing children.