You explain the new phone plan. Data allowance, hotspot, family tier, rollover minutes. He has stopped listening. This is the Simplification Instinct. He has one question: does this fix my problem?
Answer that question first. The rest can wait.
Practical Techniques
Find the One Problem It Solves for Him
Before you explain anything, ask yourself: what does he actually need this for? For the phone plan, the answer is probably “cheaper calls” or “video calls with the grandchildren.” Lead with that. Drop everything else.
Lead With the Benefit, Not the Feature
A feature is what the thing does. A benefit is what it does for him. Say: “This plan means you pay thirty euros less every month. That is it.” He can decide from there. If he wants to know more, he will ask.
Hold the Rest Back
Tell him one thing. Give him time with it. If he is interested, add the second point. If he is not, more features will not change that.
Why This Works
A list of features makes him work harder. One clear answer makes it easy to decide. His Simplification Instinct is not resistance. It is a filter. Work with it.
Be Honest About Downsides
Do not omit real limitations to make the sale easier. He needs accurate information to decide. A downside he finds out about later ends the trust.