Question about burying stems

Have a few plants with stretched stems that started with just window light. I will use more light next time to avoid the stretch. I read the guide about repotting seedlings and burying the stem in soil.

Are my plants too old to do this stem burying? I think they germinated about June 21st and broke soil around June 25th. I read that eventually doing this would just rot the stem. Will burying the stem improve the final outcome of the plant more so than supporting the stem with a stick and twist-tie would?

Thanks for any help.

i have personnally added more soil in the past to support the plant you could do both burry the stem and support it also get a fan blowing on it to strenthen the stem but you would be best to bury the stem at least half of it

This could be an exciting grow,....rarely does that happen ? guys who do guerrilla growing like to germ under a 2700 kelvin lights to get this long straggly thing it is, its ideal to encourage this THAT WHEN PLANTED OUT IN THE FOREST, IT CAN LOOK AFTER ITSELF, no daily watering required, and deceptively old for bugs to avoid too, for the grower who grows in a box, it can be to much of a problem, but its easy to fix, first support the plant by taping or wiring a chop stick(or other) to the stem, and place under 2-3 6500k light bulbs, thats cool white to you ...Carves this to your 4head

More blue- shorter with tight inter-nodes .......................More red- taller with longer inter-nodes

ps study up Kelvin!