While it's not right that your children are not talking to you, you might want to do some more research before you get further involved. Then if you decide to join you will be better informed and know you are making the right decision. You see, many of us here are former Jehovah's Witnesses, or current members who are concerned about some aspects of this organization.
When I studied and became baptized many years ago I was not told certain things in the organization about their history and practices. I did not know you could be disfellowshipped for even one instance of what they consider a serious sin, or actually for anything three elders agree on and there would be recourse and that you would loose all your family and friends. I didn't know that if I chose to leave the organization I would still be disfellowshipped if I I'd anything they considered wrong, like celebrating Christmas, that other people consider innocent. You see in this religion there is considered to be no valid reason to leave and in fact if you publicly disagree with any teaching you are considered to be a mentally diseased apostate.
I didn't know they had predicted the end of the world numerous times, and been wrong every time. At the time I joined I was told the world was going to end soon, most likely in 1975. I was told I would never have time for a career in this system of things, so I didn't go to college. Obviously Armageddon did not come, now they pretend they never predicted that and still tell young people not to go to college because Armageddon is so close. I didn't know that they keep their finances hidden, that no one knows what happens to they money they take in. I also didn't know that they hid their issues with child sex abuse by members of the congregation. They still deny they have a problem while secretly paying out millions in settlements and are being investigated by the Australian Royal commission.
So do yourself a favor and think long and hard about whether you want to join this group. Although they mean well, they have lost the love that should be a part of any Christian group and have seriously lost their way. It is a religion of guilt and more guilt. You will never feel like you have done enough, because you will be expected to give up all personal goals and pursuits in obedience to the demands of the organization. You will be looked down on and counseled if you miss meetings or field service, no matter the reason.
Please take the time to research their history. Wikipedia is a good neutral starting point, but also consider JWfacts.com, they have accumulated a lot of quotes from the literature of the organization. You won't be sorry you took the time.
Good Luck
Lisa🌹