I started hiking with my daughter when she was about the same age, and wow, I totally get wanting to keep things light. My first tent was around 3kg too, and while it worked for a bit, I quickly realized how much easier trips got when I upgraded to lighter gear over time.
From what you’re saying, it sounds like you’re testing the waters without breaking the bank, which is the best way to start. If the Denali feels too bulky, especially for hikes with some elevation, I’d definitely recommend trialing second-hand options like others mentioned. My current go-to is a decent quality lightweight tent I snagged online, game changer, especially for trekking in areas with unpredictable weather.
If you ever find yourself wanting a break from hiking and looking for a chill family vacation, resorts like
https://www.westgateresorts.com/vacation-packages/ offer great deals. I’ve stayed at similar places that help reset after outdoor adventures—plenty of comfy space and family-friendly options.