- I know that you are financially secure, but I think 85% of financial assets in equities is too high, unless you are really focused on legacy/end of life giving. A huge depression would hit that equity holding very hard, and I don't see your need to take that amount of risk, given what you've said. I would think about dialing-back the equity exposure to something like 60%.
- I don't think your pension fund growth at age 55 should come into play in your consideration, given your level of assets. The question for you is whether you otherwise want to work to 55 or not, but I don't see why the pension should tip the scales.
- Given your children's ages, I think you could face geographic limitations based on their high school educational needs. I'm not very familiar with what your options for them may be in, say, Puerto Vallarta v. other places in Mexico, but I would think this would have to be a consideration if you retire before they go to college.
- Your annual "burn rate" is lower than mine, and I don't know what your residential property desires are - if you wanted a REALLY high-end residential experience, there are places in Mexico (such as Punta Mita, outside Puerto Vallarto) where you could have a retirement-type lifestyle with beautiful ocean views and lots of room to hike, kayak, etc. That comes with a steep price-tag, but you can afford if it that is what you wish. I don't know that the school options for your children would be there.
- I think that your concern about the "example" you set may depend very heavily on the personalities of your children. My daughter, who is only a bit older, has seen me work so hard in my stressful career that she just wishes I would dial it back and focus on the charitable and other causes that I value. I don't think retiring when she was a teenager would have affected her in a negative way, but other children might be different.
Good luck to you!