Older riders are pushing themselves harder these days than ever before.
The boomer generation is not content to putter around on a beach cruiser. There are plenty of senior riders out there in full kit, riding $5000 road bikes doing group rides where the average pace is pretty high. They're also many that still race competitively. Plenty are also Strava addicted and pushing their limits . Then there is cyclo-cross, mtb, hill riding etc. It all adds up to a more hazardous environment for riders.
I think its only going to get worse..