Yaacov's refusal to use Yitzhak's wealth

Question

This is a question my son asked I couldn't answer.

1. Yitzhok was extremely wealthy.
2. When sending out Eliezer to bring Rivka, Abraham wrote him an inheritance bill for Yitzhok.
3. When Yaakov "ran away" he took some money that was stolen by Elipaz (acc. to Midrash)
4. When he finally got to Lavan, Yaacov could easily send messengers back to his father to provide him with all the money he needed to buy Rachel and Leah and whatever he needed to live happily and learn Torah worry-free. However, he never contacted his father (not documented anyway).
5. The Halocho says we always should minimize our tests (Nisayon) and get out of problematic situations (staying with Lavan, worries with marriages) as fast as possible, and pay all the money needed.

So why didn't he do it?

Answer 1

The medrash (cited by Rashi on Genesis 29:11 s.v. "ויבך") that says that Eliphaz stole his wealth, also says he did it at Yaakov's behest in order to justify lying to Esau that he had fulfilled his mission to kill Yaakov (relying on the concept that poverty is likened to death). If Yaakov sent messengers back, there would likely be a substantial risk Esau would find out (which may also help explain why Yaakov never reached out to his parents before Yosef was born).

ויבך: לפי שצפה ברוח הקודש שאינה נכנסת עמו לקבורה. דבר אחר לפי שבא בידים ריקניות, אמר אליעזר עבד אבי אבא היו בידיו נזמים וצמידים ומגדנות, ואני אין בידי כלום. לפי שרדף אליפז בן עשו במצות אביו אחריו להורגו והשיגו, ולפי שגדל אליפז בחיקו של יצחק משך ידו. אמר לו מה אעשה לציווי של אבא, אמר לו יעקב טול מה שבידי, והעני חשוב כמת

and wept: Since he foresaw with the holy spirit that she (Rachel) would not enter the grave with him. Another explanation: Since he came empty-handed, he said, “Eliezer, my grandfather’s servant, had nose rings, and bracelets and sweet fruits in his possession, and I am coming with nothing in my hands. [He had nothing] because Eliphaz the son of Esau had pursued him to kill him at his father’s orders; he (Eliphaz) overtook him, but since he had grown up in Isaac’s lap, he held back his hand. He said to him (Jacob), ”What shall I do about my father’s orders?“ Jacob replied,”Take what I have, for a poor man is counted as dead." - [from Bereishit Rabbathi by Rabbi Moshe Hadarshan]