Within the listed options, +1 for S21 FE.
Pixel is also know for connectivity issues other than the battery issue mentioned above.
Would suggest to avoid the Moto edge 50 pro as it seems to be running on UFS2.2! (I had to look it up on multiple sources to verify; UFS2.2 in 2024 is basically a joke) Their reputation for OS updates is already sinking and this'd only make it worse. In short, might not be long lasting.
Neo 7 pro is basically an undercut 11r, both of which don't have a telephoto. If you're considering this, meaning you're not-so-serious about having a telephoto, IP68 or under 6.5" size, consider the 12r instead. Comes with Android 14, promised updates till 17, 5500mAh battery and much better SOC than the S21 FE. So the extra money from the 30k spent is actually worth it here.
Under 30k smartphones come with a lot of compromises these days, so it's not really recommended for parents, as they can't be expected to deal with custom ROMs and such. The VFM under 40k smartphones is better for such users as opposed to smartphones under 30k.