I have stopped recharging 3 jio number in my family since these were secondary sims
Best part about Jio is that, they never forced user to perform incoming validity recharge. And, that's why I prefer Jio over any other company including BSNL.
Even some of these subscribers will consider porting back after the 90 days lock in period.
True. Justification is necessary even oldies are very perticular about speed and connectivity. They don't give damn to video quality but, it shouldn't buffer. So, a good 3G/H+ would be fine.
P.S : Yesterday, my granny asked me to perform yearly recharge on her smartphone. She said,
I don't care about how much it take just perform yearly recharge. I added one more sim to her smartphone which of BSNL 4G. I was surprised to see the full strength network with H+ sign on top, which was not possible in Nov 2022 at her location which is 3km from my house. The videos were running smoothly and she was happy again. And, I did speed test in my phone before inserting sim to her phone it shows 2.5-2.8 Mbps 3G network speed.
I'll see the network when she goes to my maternal village which definately has BSNL (as checked on Tarang Sanchar) but, poor network in Nov 2022. If good strength would be there, I'll port her primary sim which is of Jio to BSNL.
Third use case was for people who travel constantly and in certain remote locations where private operators don't have coverage only BSNL 2G is available, this will continue for a few more years.
Govt will not allow private players to deploy towers in remote areas including neighbouring borders because, of security concern. So, BSNL will exclusive for that.
Whereas, I would personally recommend buying tour sim (use and throw) instead of carrying secondary sim for 'life'.