This would also have the additional positive effect of reducing differences in rendering across browsers. At the moment there's a risk of the browser a webpage

This would also have the additional positive effect of reducing differences in rendering across browsers. At the moment there's a risk of the browser a webpage is viewed in not having the right fonts. There's no reason for browsers to make a large number of fonts available if websites aren't able to use them because not all browsers make them available. However, there may be an issue with internationalisation.