I'm thinking of taking my mother to Vegas in late July. She's 60 with some medical issues, minor mobility issues and a Vegas Virgin. I'll prob get her a scooter to cancel the mobility issues and keep her from getting fatigued too soon. Is July too hot? Are the crowds larger or smaller than spring? Anything else I should consider? Thanks for help fam. Also, it gets hot at home too. It's common to break 100 degrees with high humidity.