63 and everyone tells me I need way more bonds than this

Age 63, hoping to retire in 3-4 years. Risk tolerance is lower than it used to be, but going too conservative scares me too because inflation still exists.

Current allocation:
- 50% global stock funds
- 20% bond funds
- 20% cash / short-term deposits
- 10% REIT fund

Portfolio is around 1.1m. Every rule of thumb says I should be much heavier in bonds by now. Are people actually doing that, or do those rules just survive because they rhyme?