To want fixed bar stools and not adjustable

[starrain]

I have a 3 and 5 year old and i assumed i would need to get adjustable for them, but later realised there needs to be a certain weight on the seat for the adjusting to work anyway right?
I dont love the look of adjustable as the bases are so big. Has anyone got young kids and fixed bar stools?I would get the ones with backs.
or is there any other benefit to having adjustable or vice versa??

We have these. Kids had a booster on them for a short while between high chair and just sitting on them normally.
We bought them because the fold tho!