What skates to buy my 5 year old girl and for me?

So, a couple months ago I decided to take my little one skating for the first time. She absolutely loved it and so I signed her up for classes. She’s 4 right now and will be 5 in Dec. I am planning on getting her some new skates for Christmas. I need some advice on what to get her as I have no clue what’s good/bad or not necessary.I looked online and saw that they had adjustable shoes like these.Are these good or should I just stick with a normal shoe and move her up as she grows? I’d like to avoid that since she grows so quickly! Right now she’s in a size 8 (what I get from the rental place at the rink.)I’d also like to get some for myself so I don’t have to pay for rentals every time, as its getting expensive! I’m her dad, so if there’s a difference in shoes for men and women, adjust for that. Lol.Any recommendations for either of us would be great!