QUERY on WEST COAST DRIVE TRIP, Need quick advice

[etealee]

Hihi I have a question related to the west coast drive Trip. We are doing SFO-> Las Vegas-> Los Angeles via Yosemite early Nov this year. We have 2 kids aged 2 & 4 and my mum (60+)travelling with us.Question is does this itinery make sense;
Day 1-2 Flight in to SFO
Day 3 Drive from SFO to Yosemite, Sequoia Nat Park with brief stopovers and stay 1 night in Kernville prob the Whispering Pines Lodge.
Day 4 Set off to Las Vegas via Barstow
Day 5-7 LAS,Grand Canyon
Day 8-11 Set off to anaheim disneyland
Day 12-13 LA coastal drive/outlet shopping
Day 14 FLy back home from LA

My dillema is we want to have scenic drives but is it too much for the kids/senior?
We are trying to find a central point between yosemite and bakersfield to stay over for one night to break up the 12hour drive, it seems like more than midway if we had to drive all the way to Kernville. Any suggestions for a better stopover on Day3 ?
Does it make better sense to arrive at LA first before hitting LAS/Grandcanyon?
Should we do 1 way flight from LAS to LAX instead of driving?
Is it too much to add death valley into the drive from Bakersfield to Vegas?

Appreciate a prompt response as havent booked anything else except air tickets. BTW this thread is really helpful and i have gone through all of them.

Yes, but tacking on to a 4 year old thread is not the best way to get quick advice.