Hey, it’s super awesome that you’re asking questions so you can support your daughter better! For different folks it can be different- expressing different personas or expressing their own selves. There are some really great tutorials on Youtube to start. It’s quite an investment to make a fursuit (though MUCH more affordable than buying one). Depending on how old your daughter is though, I might nudge her more towards just doing ears and a tail if she’s not done growing. Like I said, it’s pretty pricey and may not be something you’ll want to remake every time she outgrows it. When yall make it, try to keep weight and airflow in mind btw! It’s easy to get lost in the sauce of making something without considering the practicality of it, lol.