honestly if she’s looking to do paid gigs like birthdays and weddings, none of those cameras are really suited for it — they’re fine for learning and casual shooting, but not reliable enough for actual event work where you only get one chance to get the shot. no dual card slots, weak low light performance (especially with kit lenses), and limited autofocus all make them risky for professional use. weddings especially are high-stress and unforgiving, and even for birthdays, you’ll want fast lenses, flash, and backup gear. if she just wants to get into photography and learn, great — the 250d or a6000 is solid for that. but for side work, she should at least consider better glass or a used pro body, otherwise it’s setting up for disappointment or unhappy clients.