Being a T is a job like any other, and, like all jobs, there is hopefully a good section of all society represented. Of course some live alone, some don't, some have kids, some don't.
Like teachers, doctors, cleaners, waiters etc.
These threads come up quite often though, and I do think it's interesting that we can sometimes see T's as some sort of 'other', living the charmed, sorted life.
It takes a long while to train as a T, so I guess in a lot if cases you would choose to be a T before many life experiences had happened.
Otherwise it would be like waiting til your teeth are perfect before you train to be a dentist.