I'm late to this discussion but agree with most of DieselDennis' comments.

I am quite a bit older than 40's and basically a one-man band when it comes to farm and cow work. Out of 8 kids only one is interested in the farm and cattle but she's very tied up with her family and career. Wife likes the cows from the Ranger but that's about it and we both enjoy many other activities together, especially canoeing up north for a few days at a time. And I've had employees for 30+ years and don't care to have any more employees. There's really not enough money in a small scale (I'm down to about 25 cows and heifers) cow/calf operation to support employees other than the occasional former high school students I hire for a few hours when a job takes 2 people. 

However the cows are very  important to me and my mental and physical health. Nothing like walking a pasture with content Hereford cows and growing calves. Cheaper than a therapist and probably more effective,  in my case anyway.

Grandkids are showing interest in cows, calves and developing some skills. They may be the ones to carry on. For those reasons, the cows will be here as long as I am. 

The key is to look at how you are raising the cows. In my rotational grazing system I have a pretty good idea of how much grass the cattle need each day. This time of year I move  them every few days. They have automatic waterers, mineral barrels and white salt blocks. Other than cleaning waterers and re-oiling the fly rubs occasionally, there just is not much to do. This provides time to do things the wife enjoys, entertain visiting family, take trips to the river, etc.

It may take looking at your cattle and system and pruning it back to allow you time to spend on the wife and family.  In my case I never had a family history of how cattle should be raised nor a big old dairy barn, silos, etc which I felt  had to be used so sort of figured cattle out on the fly as a retirement project after many years in row crops. With a lot of help from neighbors and reading various books and making a lot of rookie mistakes I've found a system that generally works.

Life got a lot easier when I started focusing on Calving ease EPD bulls (CED) and moved calving to May 1 after reading some suggestions here. Life also got much easier when I realized how to raise good beef without corn and just went all grass.

Just the title of this thread seems to indicate you WILL miss the cows. You need to take care of your needs as well as the family's needs. There is probably a system that will let you do both.

Best of luck.