What if outer towers gave defensive buffs to nearby champions?

Just a random thought. Early game tower dives seem to be an issue. Especially in pro play, the top laner can't even go to lane because if there's a swap it's a 1v2 that eventually results in a 4v1 gank + tower dive for a free kill.

Except what if it didn't? What if outer turrets gave defensive buffs to nearby allied champions? It could be on a channel system, i.e. the champion needs to 'activate' the tower by channeling for a second or so (i.e. needs to see the dive coming) if it sounds too strong for people just getting back to their tower. It could also not apply to mid outer tower since that's the one that is often defended and could make taking that tower too hard.

Towers are weak right now. I get that late game you're supposed to protect towers, but early game they're supposed to protect you. Pre-6 a tower should be worth ~2 champions on its own in my opinion.