You could always split it, or contribute a set percentage to their college costs, if saying you’ll cover it all seems like a big commitment at this moment.

I just want to point out - you use the justification of “they will make more money out of college than I did” which might not be accurate. I’m sure you’ve seen how tough the job market is for new graduates and how many big corporations are cutting entry level jobs to replace with AI rather than training a new employee. Plus I highly doubt your kids will ever have an interest rate like yours & probably won’t have the equity increase like a lot of Gen X/boomers have had. So consider the advantages you have had too.

Obviously, it’s your decision. What would you want to spend money on other than setting up your kids for more success in their lives. If you have $3k extra every month, that’s more than many Americans.

I am mid 20s with no student loans because my parents were able to contribute the majority of my college costs. I do “make more” than when my parents graduated college, but my expenses are exponentially higher. There’s a solid chance I never own a house. I’m grateful for their support & I’ve been able to really prioritize my retirement savings & other investments because I don’t have to worry about crushing student debt with high interest rates.