Life Insurance post separation and divorce

Assume we have no dependent children (well, they’ve finished high school and moved on to college). Is it customary (or can I be compelled in court) that I continue life insurance coverage that I currently have (still married), with spouse as beneficiary? Can I do the same to spouse (who has much more insurance that I do)? If this is true, then when (term life) policy comes up for renewal, and the premiums quadruple
(or worse), can I still be forced to provide it? If I can be forced to continue a policy, can I change the beneficiary to child rather than (ex-) spouse?

                                              many thanks

You cannot be required to continue LI for the benefit of children who are over 18 and have moved on from HS.