A Different Way to Grow - Aging

[MikiHeart]

It would take a lot to do this sort of thing. You would need a cron job to check the adoptables once a day. If you site ends up with a lot of adopts, this could become quite extensive, and cause a lot of server load.

I honestly would recommend this kind of feature. Because of the server load issues you may face, as well as the fact that it makes it so users don't have to login everyday to level up their pets. They may loose interests quickly. So really think about this.