I had an SE first gen. Was a solid and powerful unit. Likely the SE 3 may be a bit larger. Size matters, I guess. And depends on the user. I wear reading glasses and now find the larger phones easier to use with out glasses. Both wife and I moved from SE to 8 Plus and I have now I moved on to an Xr. The Xr screen is a bit smaller than an 8 plus but when you take out the bottom strip for the home button both have screens pretty much the same size. My daughters are all in late 40s and one prefers the smaller SE....just preference I guess. One thing I like about the iPhones that are above an 8 Plus.....you can use SIRI to make a call without Data or Wifi. I would let wife choose.
Actually, my wife presently has a samsung phone, with which she is unhappy. All her other devices are Apple products so I thought she might enjoy having an apple phone to be compatible with her other devices. She wants a smaller phone so the new iphone se 3 2022 seems like a good possibility.we can check them out when they hit the Apple stores.